Roman Numeral Decoding Quiz

Beat the clock to decode these randomly-generated Roman Numerals.

The questions change every time!

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Last updated: September 3, 2018

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First submitted	January 23, 2011
Times taken	279,868
Average score	60.0%
Rating	4.82

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Roman	Arabic
-	x
-	x
-	x
-	x
-	x

Roman	Arabic
-	x
-	x
-	x
-	x
-	x

Roman	Arabic
-	x
-	x
-	x
-	x
-	x

Roman	Arabic
-	x
-	x
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-	x

Level 69

Feb 2, 2011

If you need time added, then it's your math that's the problem. If you can't do it, get faster with your math!!!!

+61

Level 16

Mar 16, 2021

Well nobody asked you

soo

+47

Level 22

May 30, 2021

The fact that the comments and the reply are a decade apart is hilarious

+22

Level 83

Aug 16, 2021

Come sometime in February/March 2031, I'm gonna reply to this.

+18

Level 59

Aug 17, 2021

Darn. Now I have to wait twenty years.

+12

Level 66

Dec 6, 2021

I reserve my 30 years spot

Level 41

Dec 18, 2021

I'll be back in '61

Level 39

Jan 13, 2022

'71 for me

Level 56

Jan 24, 2022

i call 81

Level 30

Feb 11, 2022

I'll come back when I'm 93 years old in 2091 and reply

Level 17

Feb 17, 2022

2101 for me i guess

Level 34

Apr 4, 2022

2111 then... I'll give it to my grand children then

Level 65

Apr 10, 2022

2121, remind me

Level 61

May 10, 2022

In the year 2141 if I am still alive, if JetPunk can survive, we may find...

Level 30

Jun 19, 2022

When time travel is invented, i reserved 2131

Level 32

Jun 21, 2022

I'm going to pass down an artifact for generations with text telling my descendant to comment in 2141.

Level 68

Jun 25, 2022

Just hopefully I will be alive in 2151…

Level 35

Apr 22, 2022

oh nice you are level 69

Level 55

Mar 28, 2011

36 sec left :)

Level 21

Apr 18, 2011

46 seconds left with 100%

Level 46

Jun 29, 2011

Yes! 20/20!

Level 79

Jul 7, 2011

Took me 9 tries but I finally got 'em all. Ended w/ 19 probably 4 times or so!

Level 22

Sep 11, 2011

One of my favorite quizzes!!! Got them all the first time, but it was tight!

Level 18

Jun 6, 2012

Please add time.

Level 66

May 29, 2019

Definitely not!

Level 20

Jun 26, 2012

just remembered what L is -__________________-

Level 32

Jun 21, 2022

I barely remembered L, but I don't think I've ever encountered D.

Level 32

Jun 21, 2022

Also, that's what she said.

+31

Level 38

Mar 2, 2013

Never mind the history books - this counting system is why the empire fell.

Level 84

Mar 2, 2013

improving after 3 tries but still only got 18.

Level 35

Aug 26, 2021

i did this quiz 5 times and kept getting 19, thankfully got 20 in the 6th one

Level 45

Mar 2, 2013

For those of you having trouble remembering the characters: If you put a "V" on top of an upsidedown "V", you get an "X", so an "X" is two "V"s. If you put an "L" under an upsidedown "L", you get a "C", so a "C" is two "L"s. If you put a "D" to the right of a backwards "D", you get a curvy "(|)" thing that's vaguely "M"-like, so an "M" is two "D"s.

+38

Level 28

Mar 2, 2013

That's more complicated than just memorizing them.

Level 77

Dec 10, 2013

LOL right?

Level 42

Dec 1, 2014

aertzc hahahahahhaahaha :D

Level 49

Dec 28, 2016

GUMDROPS

Level 37

Apr 25, 2017

AMEN! - The cure is worse than the disease - Just memorize them already!!!

Level 43

Aug 3, 2020

In descending order -- MeDiCaL X-Vays --(vampire doctor trying to say medical x-rays) might be a slightly easier way to remember it? :P

I struggle to remember it immediately but I'm getting quicker :)

Level 69

Apr 27, 2017

Thanks for the tip. I generally remembered V and X but genuinely do get muddled between D and L, so I think this will be a useful way of remembering.

Level 46

Feb 7, 2019

the order is I V X L C D M

Level 66

May 29, 2019

C is cent and m is mille, so those are pretty easy and recurring in everyday life too. So it is really only a matter of distinguishing D and L and even if you switch them accidentally, you would know after only one error if is the other way around. (At least for the duration of this quiz, maybe afterwards if is forgotten again)

Level 57

Mar 30, 2020

Thats the craziest way of working out Roman Numbers I have ever seen!

Level 20

Mar 4, 2013

Need way more time.

Level 19

Nov 12, 2014

no, i finished with 21 seconds!!!!

Level 44

May 30, 2017

No more than a minute could be added.

Level 66

May 29, 2019

If xv takes you too long, it really is 10+5 that takes you too long. The time is perfect

Level 79

Mar 6, 2013

2 minutes is perfect. You gotta bust balls to get done but that's how it should be. 16 the first try, all 20 the second. On this go around.

Level 19

Nov 12, 2014

agreed, i got that too :)

i got XVI the first time and XX the second time

Level 15

Apr 24, 2013

100% with 0:17 left :)

Level 20

Oct 22, 2017

1:20 left

Level 59

Nov 4, 2017

I got 16 seconds left.

Level 84

May 14, 2013

took me 6 or 7 tries to get 100% but then when I finally did I did it with 17 seconds remaining. Must have finally clicked or else I just got an easier one...

Level 84

May 15, 2013

did it with 30 seconds remaining this time.

Level 49

May 28, 2013

16/20...I need to practice more...

Level 43

Jun 5, 2013

Took 3 tries, but 100%. What finally did it was doing the easy stuff first, instead of going in order. I actually didn't know about M, D, C or L before taking this quiz. Thanks for creating it!

Level 57

Jun 21, 2013

Always annoys me when people say the time is too tight, that's the point. If everyone could get 100% with ease it would be a pointless quiz.

Level 66

May 29, 2019

In some cases they are totally correct for some quizzes you hardly have time to read all the questions (and stops being about knowing or thinking about the answers and starts being just about who can type the fastest). But in this case the time is exactly right.

Level 73

Jul 7, 2013

0:01 Few!!!

Level 84

Apr 27, 2017

Phew?

Level 60

Jan 29, 2018

Whew - sounds the same a few!

Level 57

Sep 8, 2021

@Eliotbliss maybe you should take a spelling quiz

Level 39

Jul 28, 2013

Feci mihi primum experiri cum viginti septem secundus parce.

Level 35

Dec 6, 2015

Nice! (For those who don't know Latin, he basically just said "I did it with 27 seconds left on my first try.")

Level 57

Sep 8, 2021

Gathered as much. I cannot understand Latin, but the septem secundus gave it away .

Level 65

Oct 23, 2013

just in time! :)

Level 35

Nov 29, 2013

33 sec left.

Level 77

Dec 11, 2013

YES! Got 'em with a minute to go! On to the next challenge!

Level 24

Apr 4, 2014

Great quiz! I do have to disagree with some of the previous comments however. I would suggest keeping the time limit that is currently set. It makes for a more challenging quiz.

Level 35

Jul 22, 2014

100% with 50 secs left!

Level 33

Sep 12, 2014

Rocky II plus Rocky V equals... Rocky VII: Adrian's Revenge!

Level 19

Sep 22, 2014

Done it with 1.39 min left.

Level 19

Nov 12, 2014

done on my second try (failed on my first) and did it with 0:21 left!!

Level 18

Dec 12, 2014

Got all except the D and M ones. Don't know what they mean

Level 57

Mar 3, 2015

M is easy, it's 1000 (millennium is 1000 years, easiest comparison to english). D is 500.

Level 35

Dec 6, 2015

D for Decade! OH WAIT...

Level 35

Dec 6, 2015

;)

Level 66

May 29, 2019

Maybe think of demi to remember, half, half a millennium (just thought of this after reading the joke, not sure i will use it but maybe it will be of help for others)

Level 35

Jan 15, 2015

The average score is 13? That can't be right... You learn this in elementary school.

Level 84

Mar 3, 2015

And since then roman numerals are *so* relevant in day-to-day life, right? I mean, aside from once a year when it's time to figure out which Super Bowl they're playing.

Level 54

Aug 6, 2020

On this side of the water they come at the end of all BBC programmes. That's the only time I regularly see them above 12. Oh, and inscriptions in churches and stuff.

Level 62

Jul 2, 2017

Nope, never learned it anywhere. Until this quiz.

Level 44

Jan 24, 2018

In what country? I only learned them in 7th grade when I took Latin.

Level 84

Feb 24, 2019

I did learn them in elementary school. I specifically recall learning about them in 6th grade, but possibly sooner than that. Still, haven't had to use them very much since then.

Level 30

Jan 15, 2020

I don't recall learning them in elementary school, and even if I did, that was at lear 17 years ago, and I haven't had to use them at all. Actually had to look up C, D, L, and M for this quiz, and it took several tries to get the logic.

Great quiz, but yeah, this isn't something most people have to use.

Level 25

Jun 17, 2021

Actually... we learned it at a young age where I live, but only very shortly. I know the meaning of every letter, but counting it fast is very difficult.

We are very bad at maths in my country. We have a shitty school system unfortunately. Like very few people are good at maths in my country.

Level 83

Mar 3, 2015

Challenging, but not too hard, or easy. Got them all, but with only 3 seconds left.

Level 42

Mar 3, 2015

Done it with 1:06 left, feel proud :)

Level 35

Dec 6, 2015

You should, you beat an IQ of 139. :) Nice job!

Level 67

Mar 3, 2015

100% with 0:22. Not bad.

Level 33

Mar 5, 2015

i like it but it needs more time

Level 52

Mar 8, 2015

Not enough time! Was going great guns then all of a sudden I get the axe…

Level 52

Apr 26, 2015

This is my favourite maths quiz, but I can't seem to beat it with more than 40 seconds to spare.

Level 52

Jun 1, 2015

Yes! 44 to spare today!

Level 52

Oct 5, 2017

Wow, past me was really proud of himself without even having a minute remaining...

Level 57

Sep 8, 2021

It's weird looking back on comments you wrote isn't it?

Level 30

May 25, 2015

The time allowed is too short!!!

Level 17

Sep 2, 2015

bang on!!!!

completed with 31 secs to go..

Level 56

Oct 26, 2015

Not happy with selection I just got. 1570, 1574 and 1576, and a sequence 54, 74 and 70. Sometimes you need to be less truly random and more "random-looking"!

Level 66

May 29, 2019

Why not happy ? If should be easier when they are alike

Level 71

Oct 26, 2015

For me the first time I take a quiz is a challenge ( I missed the last 2 on this quiz before time ran out)....... keeping on taking the quiz is just a case of remembering the answers or repetition makes perfect and it's just not the same satisfaction.

Level 18

Nov 18, 2015

45 seconds left

Level 70

Jan 20, 2016

XXVIII secundis reliquit :)

Level 84

Sep 19, 2016

Can't believe it took this long for someone to think of posting their finishing time this way. Well played! FWIW, I finished with :XXXIII left. :-)

Level 57

Sep 8, 2021

I finished with CLI left on the clock

Level 56

Feb 8, 2016

Finished it on the last millisecond! Great quiz!!

Level 69

Feb 11, 2016

Maybe it's because I got a good night's sleep but I finished with 1:07 remaining today!

Level 62

Mar 11, 2016

III - XI - MMXVI. I think I am going to start dating my checks like that.

Level 64

Nov 22, 2016

It took me a few times, but I could get all 20. It was hard though.

Level 24

Nov 23, 2016

Not enough time - 3 minutes would be more appropriate.

Level 79

Nov 23, 2016

Toughest of the 3 math badge quizzes for me. Good quiz. Took me a few tries.

Level 61

Nov 23, 2016

This was the easiest for me. Addition and multiplication was much harder.

Level 52

Dec 8, 2016

cool quiz, 31s left, first go

Level 10

Dec 19, 2016

I forgot what M was but I remembered later and got 17/20 on my second try

Level 49

Dec 28, 2016

So. Stressful.

But I got them all, so I'm happy in the end.

I'm going to die young.

Level 58

Jan 15, 2017

I only got V

Level 40

Jan 24, 2017

35 seconds remaining

Level 58

Feb 8, 2017

20/20 with 1 second left!

Level 40

Feb 28, 2017

35 seconds left!

Level 45

Mar 1, 2017

33 seconds left. Finally playing this quiz IV times in a row pays off.

Level 41

Mar 8, 2017

I finished all of these with 2:01 left, I am only 2 months old and have already studied all the great Roman literature. I grew up in a poor neighborhood in Naples and yet I can recite Pliny's great works verbatim.

Level 25

Mar 26, 2017

25 seconds remaining dude!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Level 37

Apr 25, 2017

Why do you constantly edit my comments? - (I use no profanity) Can't stand the heat? (of criticism) Get out of the kitchen!

Level ∞

Apr 26, 2017

I never edit comments, but I might remove them for many reasons. Not sure if yours have ever removed.

Level 72

Apr 27, 2017

I was literally just about to type in the last one before the timer got to zero... Damn you, methodical brain, why can't you just be fast?

Level 71

Apr 28, 2017

Good Quiz, anyone doing this quiz must like a challenge. then try 'The CHALLENGE' ..... at ... ... http://www.jetpunk.com/user-quizzes/120558/the-challenge

Level 51

Apr 28, 2017

I got them all right with 4 minutes left and I am only -6. Guess what? I don't care how old you are and how much time you had left!

Level 66

May 29, 2019

I dont care about people that dont care about other peoples comments

Level 59

Apr 28, 2017

Easy.

Level 32

Apr 30, 2017

I=1 V=5 X=10 L=50 C=100 D=500 M=1,000 and if it has an underline (except "i") multiply by 1,000 (i.e. if you underline D it becomes 500,000 rather than 500.)

Level 57

May 9, 2017

needed one more second, 19/20

Level 56

May 13, 2017

anyone better than 1:17?

Level 39

Jun 3, 2017

Finished with 2 seconds left!

Level 68

Jun 15, 2017

I got XV/XX on my first try and im XI

Level 62

Jul 4, 2017

For those of us not familiar with roman numerals, this is a great test of working memory: I could not get this test when I normally take quizzes, at night, but now, after a night's sleep got it on the first try with 25 s remaining.

Level 19

Jul 31, 2017

0:11 left :)

Level 45

Aug 20, 2017

impossible...

Level 46

Aug 30, 2017

Just learnt my roman numerals - at age 40+ Whoop whoop

Level 93

Sep 1, 2017

Too easy man

Level 28

Nov 9, 2017

0:36 left - first try - and i can do faster!!!

Level 93

Nov 20, 2017

1'22'' left

Level 37

Dec 13, 2017

Wen the "untimed" route and still missed three. After a while you get cross-eyed with all those "x" es and "d"s

Level 66

May 29, 2019

I have the opposite the first 3-5 numbers went slow, after that it was just more and more like normal numbers. Like what happens when you read backwards, upside down, or wehn sntecenes are witertn lkie tihs.

Level 24

Jan 31, 2018

Math Wizard Now

Level 46

Feb 13, 2018

2 seconds left!!

Level 21

Apr 11, 2018

1 sec left!!!!!!!!!

Level 34

Apr 19, 2018

I got it with 56 seconds left. The time is fine.

Level 49

May 27, 2018

Second try, finished with 13 seconds left.

Level 45

May 29, 2018

Finished with 27 seconds left!!!!

Level 87

Jun 16, 2018

Randomly...it came up with important dates in Roman history.

Level 38

Aug 28, 2018

The numbers should be invisible untill you hit start. Now you see them beforehand and can already(if not automatically) solve some.

Level 66

May 29, 2019

Same with every single quiz on this site... thid one is mo different.

Level 54

Sep 21, 2018

quick tip: M = 1000 D = 500 C = 100 L = 50 X = 10 V = 5 I = 1

Level 50

Sep 25, 2018

Did it untimed as years since I've used Roman numerals. But very pleased I got them all right

Level 27

Oct 18, 2018

Excellent quiz! Nothing to brag about here but a great challenge to my processing of roman numerals.

Level 73

Nov 7, 2018

I thought that I had a lot of time... until the last 5 or so. 20/20 with 0:01 left!

Level 41

Dec 15, 2018

Numbers to Roman numerals would make a good quiz

Level 48

Jan 24, 2019

Got it with XIV seconds left.

My skills are useless in the real world.

Level 67

Mar 21, 2023

Am feeling this. Roman numerals my only talent.

Level 49

Apr 24, 2019

20/20 with 4 seconds left.

Level 82

Apr 25, 2019

Fun challenge. Took four goes and only had one second to spare!

Level 58

May 28, 2019

good challenge, felt impossible at the beginning with only 11 but after 5 or six attempts eventually got it, you just start to do more of it unconsciously

Level 26

Aug 14, 2019

I don't understand why all maths quizzes give so little time. I think being able to do those calculations fast is one thing, but what is rarely tested is the ability to do more complicated calculations like taking roots, factoring or squaring.

Level 34

Nov 6, 2019

26 seconds left

Level 38

Nov 28, 2019

Thanking the person who invented the decimal system.

Level 69

Nov 30, 2019

1:03 left

Level 39

Jan 8, 2020

I'm Really good at roman numerals

Level 73

Sep 27, 2020

What's MMCMLXXIX then?

Level 57

Sep 8, 2021

* one year later*

2979

Level 54

Apr 9, 2020

in MCDXCII, Columbus sailed the ocean blue. lol

Level 53

Jul 8, 2020

would've aced it if I had more time ;)

Level 35

Jul 29, 2020

i can do math but it takes a while :(

Level 30

Aug 14, 2020

Got full on the 4th try...

Very interesting and challenging

You've got yourself a new subscriber...

Level 60

Aug 28, 2020

Had to complete this to get the Math Wizard Badge... five seconds left

Level 73

Sep 27, 2020

Doing cryptic crosswords helps with this

Level 59

Oct 1, 2020

I got all of them with 1 second left!!!

Level 58

Oct 26, 2020

This was super fun! I actually got them all, to my surprise!

Level 59

Oct 30, 2020

Does MCMLXII have any significance? Is that when Quizmaster was born perhaps...? Or his/her parents got married?

Level 74

Dec 6, 2021

The numbers are randomly generated.

Level 28

Feb 15, 2021

0 right. 1:59 left

Level 57

Mar 3, 2021

Finally earned the Math Wizard badge with exactly 1 second left on this.

Level 25

Jun 17, 2021

Finally managed to count all of it. But not with a timer. :) hahaa... well well. Our educational system is not good in my country.

I want to be better at maths.

Level 87

Oct 2, 2021

Reading long Roman numerals is like making change 5 times before you get your money back.

Level 29

Oct 2, 2021

I=1

V=5

X=10

L=50

C=100

D=500

M=1000

Level 19

Dec 8, 2021

I got 83, 85, 87, and 88 in the same quiz

Level 72

Dec 10, 2021

Thank you, Arabic numerals.

Level 34

Jan 10, 2022

MMDCCCLXXXVIII should be 2888 but it isn't??

Level 34

Jan 10, 2022

MMDCCCLXVIII should be 1868 but it isn't????

Level 47

Jan 28, 2022

innit?

Level 47

Jan 28, 2022

CDXX=420😂

Level 56

Apr 29, 2022

Just no...

Level 24

May 4, 2022

Wednesday, V/V/MMXXII.

Finished with about XXI seconds left.

Level 31

May 27, 2022

I dont like roman numerals. The fact we do them every year in school for about 1 week, and then forget it, just makes you have to learn them agian. So this took me 3 days.

Level 24

Jun 15, 2022

this is the reason why i cant get the math badge

Level 52

Sep 30, 2022

Retro in die meo hoc esset negotium simplex cuivis cum dimidia parte cerebri.

Vale, Trajan!

Level 75

Nov 8, 2022

cogito ergo sums

Level 50

Jan 11, 2023

too easy first try

Level 16

Jan 13, 2023

7 seconds left on first try, too ez

Level 36

Jan 31, 2023

WOWZERS ZOINKS HELLA COOL YO

Level 23

Feb 9, 2023

Got 42,51,58 cause of the super bowls

Level 36

Feb 16, 2023

this quiz is insanely difficult . . . maybe add some more time

Level 67

Mar 21, 2023

Beating the clock was fun for me. 1 minute 17 seconds.

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