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	339,882
Average score	65.0%
Rating	4.84

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Roman	Arabic
XXXII	32
MXCVII	1097
XXV	25
V	5
CMLXVI	966

Roman	Arabic
CDLXXXIV	484
CCCXIX	319
MDCCCXV	1815
MCMXXXV	1935
XII	12

Roman	Arabic
CCXXIII	223
VII	7
CCCLXXIX	379
CLXIX	169
LXVI	66

Roman	Arabic
XLV	45
MCDXXXI	1431
CDIV	404
CXLVIII	148
VIII	8

Level 81

Nov 23, 2016

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

Level 60

Nov 23, 2016

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

Level 51

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 57

Jan 15, 2017

I only got V

Level 42

Jan 24, 2017

35 seconds remaining

Level 60

Feb 8, 2017

20/20 with 1 second left!

Level 42

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 40

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 24

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 74

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 52

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 67

May 29, 2019

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

Level 63

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 64

May 9, 2017

needed one more second, 19/20

Level 58

May 13, 2017

anyone better than 1:17?

Level 39

Jun 3, 2017

Finished with 2 seconds left!

Level 69

Jun 15, 2017

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

Level 61

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 95

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 67

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 23

Jan 31, 2018

Math Wizard Now

Level 46

Feb 13, 2018

2 seconds left!!

Level 21

Apr 11, 2018

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

Level 37

Apr 19, 2018

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

Level 48

May 27, 2018

Second try, finished with 13 seconds left.

Level 45

May 29, 2018

Finished with 27 seconds left!!!!

Level 89

Jun 16, 2018

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

Level 37

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 67

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 49

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 68

Mar 21, 2023

Am feeling this. Roman numerals my only talent.

Level 49

Apr 24, 2019

20/20 with 4 seconds left.

Level 84

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 39

Nov 6, 2019

26 seconds left

Level 37

Nov 28, 2019

Thanking the person who invented the decimal system.

Level 71

Nov 30, 2019

1:03 left

Level 43

Jan 8, 2020

I'm Really good at roman numerals

Level 75

Sep 27, 2020

What's MMCMLXXIX then?

Level 63

Sep 8, 2021

* one year later*

2979

Level 61

Apr 9, 2020

in MCDXCII, Columbus sailed the ocean blue. lol

Level 52

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 59

Aug 28, 2020

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

Level 63

Oct 1, 2020

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

Level 59

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 76

Dec 6, 2021

The numbers are randomly generated.

Level 28

Feb 15, 2021

0 right. 1:59 left

Level 65

Mar 3, 2021

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

Level 26

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 89

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 77

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 61

Jan 28, 2022

innit?

Level 84

Dec 14, 2023

It's 2868.

Level 61

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 25

Jun 15, 2022

this is the reason why i cant get the math badge

Level 54

Sep 30, 2022

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

Vale, Trajan!

Level 79

Nov 8, 2022

cogito ergo sums

Level 64

Jan 11, 2023

too easy first try

Level 17

Jan 13, 2023

7 seconds left on first try, too ez

Level 43

Jan 31, 2023

WOWZERS ZOINKS HELLA COOL YO

Level 43

Feb 9, 2023

Got 42,51,58 cause of the super bowls

Level 53

Feb 16, 2023

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

Level 68

Mar 21, 2023

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

Level 59

Mar 22, 2023

Everybody vibing till they pull out the MMDCCCLXXXIV

Level 40

May 11, 2023

Today I learned I'm a ROMAN MATH GOD! TOO EASY!

Level 59

Jun 23, 2023

,,probably the easiest quiz on jetpunk...

Level 35

Jan 9, 2024

OMG got 12....... Time is too short for me

Level 21

Jan 30, 2024

Every time my teacher tells me to write the date on my papers, I'll be putting these Roman numerals on there. Malicious compliance

Level 47

Jan 31, 2024

Good quiz, could do with less time though

Level 23

Feb 28, 2024

Good Quiz but to easy

Level 55

Feb 28, 2024

Sometimes there are benefits to being old. These were the only numbers we had when I was young

Level 46

Mar 15, 2024

I am a bit slow at decoding so it took me 3 attempts

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