Washing Machine Capacity Calculator
Determine the ideal washing machine drum size for your household needs.
How We Calculate This
The calculator estimates weekly laundry production (4.5kg per person), divides by wash frequency, then recommends a drum size that allows 80% loading.
Weekly laundry = people × 4.5kg
Per wash = weekly laundry ÷ wash sessions per week
Drum size = per wash ÷ 0.8 (rounded to nearest standard size)
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Always verify quantities and timings for your specific situation.