Roast Weight Loss Calculator
Estimate coffee roast weight loss by green weight and roast level. Calculate finished weight and approximate cup yield.
Inputs
High altitude beans are denser and retain slightly more mass during roasting
Results
Roasted Weight
425 g
Weight Loss
15%
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Start FreeRoast Weight Loss Estimator
Artysan by Irora Labs
July 16, 2026
Inputs
| Green Bean Weight | 500 g |
| Roast Level | medium |
| Bean Density | medium |
| Ambient Humidity | 50 % |
Results
| Roasted Weight | 425 g |
| Weight Loss | 15% |
Created with Artysan. artisan.iroralabs.com/craft-calculators/roast-weight-loss
Tips
Open formula
Weight loss during roasting comes from moisture evaporation and chemical decomposition. Denser, higher-altitude beans tend to lose slightly less weight.
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