Enter a number in base 21 below to convert it to base 60 instantly.
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In base 21, each digit position represents a power of 21: the rightmost digit counts individual ones, the next counts groups of 21, the next counts groups of 21×21, and so on — the same place-value idea as base 10, just with 21 distinct digits instead of ten.
Base 60 works the same way: the rightmost digit counts ones, the next counts groups of 60, the next counts groups of 60×60, and so on, using 60 distinct digits.
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| Base 10 | Base 21 | Base 60 |
|---|---|---|
| 1 | 1 | 1 |
| 2 | 2 | 2 |
| 3 | 3 | 3 |
| 4 | 4 | 4 |
| 5 | 5 | 5 |
| 6 | 6 | 6 |
| 7 | 7 | 7 |
| 8 | 8 | 8 |
| 9 | 9 | 9 |
| 10 | A | A |
| 11 | B | B |
| 12 | C | C |
| 13 | D | D |
| 14 | E | E |
| 15 | F | F |
| 16 | G | G |
| 17 | H | H |
| 18 | I | I |
| 19 | J | J |
| 20 | K | K |
| 21 | 10 | L |
| 22 | 11 | M |
| 23 | 12 | N |
| 24 | 13 | O |
| 25 | 14 | P |
| 26 | 15 | Q |
| 27 | 16 | R |
| 28 | 17 | S |
| 29 | 18 | T |
| 30 | 19 | U |
| 31 | 1A | V |
| 32 | 1B | W |
| 33 | 1C | X |
| 34 | 1D | Y |
| 35 | 1E | Z |
| 36 | 1F | a |
| 37 | 1G | b |
| 38 | 1H | c |
| 39 | 1I | d |
| 40 | 1J | e |
| 41 | 1K | f |
| 42 | 20 | g |
| 43 | 21 | h |
| 44 | 22 | i |
| 45 | 23 | j |
| 46 | 24 | k |
| 47 | 25 | l |
| 48 | 26 | m |
| 49 | 27 | n |
| 50 | 28 | o |
| 51 | 29 | p |
| 52 | 2A | q |
| 53 | 2B | r |
| 54 | 2C | s |
| 55 | 2D | t |
| 56 | 2E | u |
| 57 | 2F | v |
| 58 | 2G | w |
| 59 | 2H | x |
| 60 | 2I | 10 |
| 61 | 2J | 11 |
| 62 | 2K | 12 |
| 63 | 30 | 13 |
| 64 | 31 | 14 |
| 70 | 37 | 1A |
| 80 | 3H | 1K |
| 90 | 46 | 1U |
| 100 | 4G | 1e |
| 200 | 9B | 3K |
| 300 | E6 | 50 |
| 400 | J1 | 6e |
| 500 | 12H | 8K |
| 600 | 17C | A0 |
| 700 | 1C7 | Be |
| 800 | 1H2 | DK |
| 900 | 20I | F0 |
| 1000 | 25D | Ge |
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