Garbage Disposal Sizing Calculator
Find the right garbage disposal horsepower for your household based on family size, cooking habits, and food waste types.
Inputs
Results
Recommended HP
0.75
Usage intensity score4
Chamber size (cu. in.)34
Typical motor RPM2,800
Estimated amps (120V)6
Price range low ($)$120
Price range high ($)$250
Permanent magnet motor?1
Batch feed recommended?0
Septic-compatible needed?0
Hp Label3/4 HP
How to Use This Calculator
- Enter the number of people in your household — larger families need higher HP motors.
- Set your cooking frequency: 0 = rarely, 1 = a few times per week, 2 = daily, 3 = multiple times daily.
- Toggle Hard Foods to 1 if you grind bones, fruit pits, or shellfish shells regularly.
- Toggle Septic System to 1 if your home uses a septic system — this raises the HP recommendation.
- Review the Recommended HP, Estimated Amps, and Price Range to find the right disposal model.
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