WM Size Calculator
Enter how many people live in your home, how often you wash and whether you wash duvets at home. The calculator suggests a washing machine drum size in kg and in US cubic feet.
- Drum size
- US capacity
- Load check
Drum size is the dry cotton load.
1 to 2 people suit 6 kg, 3 to 4 suit 8 kg, 5 or more 10 kg. A family of four washing 5 times a week needs an 8 kg drum. To wash a king size duvet, go up to 9 kg.
Washing machine size chart
By household. Search for people.
| People | Drum | US cu ft |
|---|---|---|
| 1 | 6 kg | 2.7 |
| 2 | 6 to 7 kg | 2.7 to 3.2 |
| 3 | 7 to 8 kg | 3.2 to 3.6 |
| 4 | 8 kg | 3.6 |
| 5 | 9 to 10 kg | 4.1 to 4.5 |
| 6 or more | 10 to 12 kg | 4.5 to 5.5 |
kg.
People and drum
5 washes a week. Slide the people.
The machine's drum grows.
How to choose a drum size
Home to drum. Step through it.
People
Count them.
Check the machine fits the space and the door opens.
Compact, standard or large
Drum sizes. Compare them.
6 to 7 kg.
8 to 9 kg.
10 to 12 kg.
A full small drum is more efficient than a half full big one.
Before you buy
Machine checks. Tick each item.
Tick each item as you go.
Leave a few centimetres behind for hoses.
What you get
Washing machine sizing. Each tile explains one result.
kg.
cu ft.
Advice.
Per wash.
Fit.
Each person makes about 4 to 5 kg of laundry a week.
Frequently Asked Questions
No question matches that search.
What size washing machine do I need?
About eight kilograms for a family of four.
What size washing machine for a king size duvet?
At least nine kilograms, ten is better.
What does a kilogram rating mean?
The most dry cotton laundry the drum can wash at once.
Is a bigger washing machine worse?
Only if you run it half empty.
How do kg sizes compare to cubic feet?
Divide the kilograms by about two point two.
Are bigger machines wider?
Most stay sixty centimetres wide but get deeper.
Laundry done right
Pick the drum to your household and every wash fits.
More size calculators
Each one has its own calculator, worked examples and answers to common questions.