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Calculate Specific Gravity from Plato
Every now and then you may run into a beer or beer recipe that give Plato instead of Specific Gravity. And there's an easy calculation to convert between the two:
( Plato / ( 258.6 - ( ( Plato / 258.2 ) * 227.1 ) ) + 1 = Specific gravity
Well maybe easy isn't the right word, but to make it easier I made a little calculator to help with the math:
Or, if your just looking for a cheat sheet, here is a quick conversion reference:
| Plato | Gravity |
| 1 | 1.004 |
| 2 | 1.008 |
| 3 | 1.012 |
| 4 | 1.016 |
| 5 | 1.020 |
| 6 | 1.024 |
| 7 | 1.028 |
| 8 | 1.032 |
| 9 | 1.036 |
| 10 | 1.040 |
| 11 | 1.044 |
| 12 | 1.048 |
| 13 | 1.053 |
| 14 | 1.057 |
| 15 | 1.061 |
| 16 | 1.065 |
| 17 | 1.070 |
| 18 | 1.074 |
| 19 | 1.079 |
| 20 | 1.083 |
| 21 | 1.087 |
| 22 | 1.092 |
| 23 | 1.096 |
| 24 | 1.101 |
| 25 | 1.106 |