| MegagrayMultiples et sous multiples megagray | |
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| 1 yoctogray = 1.0 x 10-30 megagray | 
| 1 zeptogray = 1.0 x 10-27 megagray | 
| 1 attogray = 1.0 x 10-24 megagray | 
| 1 femtogray = 1.0 x 10-21 megagray | 
| 1 picogray = 1.0 x 10-18 megagray | 
| 1 nanogray = 1.0 x 10-15 megagray | 
| 1 microgray = 1.0 x 10-12 megagray | 
| 1 miligray = 1.0 x 10-9 megagray = 0.000000001 megagray | 
| 1 centigray = 1.0 x 10-8 megagray = 0.00000001 megagray | 
| 1 decigray = 1.0 x 10-7 megagray = 0.0000001 megagray | 
| 1 gray = 1.0 x 10-6 megagray = 0.000001 megagray | 
| 1 decagray = 1.0 x 10-5 megagray = 0.00001 megagray | 
| 1 hectogray = 1.0 x 10-4 megagray = 0.0001 megagray | 
| 1 kilogray = 1.0 x 10-3 megagray = 0.001 megagray | 
| megagray | 
| 1 gigagray = 1.0 x 103 megagray = 1000 megagray | 
| 1 teragray = 1.0 x 106 megagray = 1 000 000 megagray | 
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