Loading page
About this tool
Size a washing machine in kg from your household's weekly laundry weight, bed linen and how many washes you run.
A washing machine's kg rating is the maximum weight of dry laundry it can wash in one cycle, so this selector works backwards from that definition: it adds up your household's weekly laundry from typical dry garment weights (a shirt 0.2 kg, jeans 0.7 kg, a double sheet 0.8 kg), divides by the number of washes you want to run, then divides again by a 0.85 fill factor because a drum packed to its rating cannot tumble. The result is matched to capacities actually sold, from 6 kg to 12 kg. It is aimed at anyone choosing between a 6.5 kg and an 8 kg machine without guessing.
Open Washing Machine Capacity Selector on AltFTool — it loads instantly in your browser.
Enter the values you already know.
Fine-tune the options to match your scenario.
Read the result and use it in your planning or reporting.
Uses real dry weights rather than a vague family-size lookup table.
Shows the usable load, not just the number on the badge.
Bed changeovers and double quilts are sized separately because they drive drum volume.
Around 7 to 8 kg for most families of four washing three times a week. That household generates roughly 18 kg of dry laundry a week, which is about 6 kg a wash, and a 7 to 7.5 kg drum carries that with room to tumble.
Yes, for two adults washing twice a week including one bed's linen — that works out to about 5.2 kg a load, which a 6.5 kg drum handles comfortably. Move to 8 kg if you wash only once a week or put double quilts in the machine.
Dry. Manufacturers rate capacity as the weight of dry laundry loaded before the cycle starts; the same load can weigh two to three times more once soaked. Weigh clothes dry if you want to check what actually fits.
No — leave roughly a hand's width of space above the load, about 85% of the rating. A packed drum stops the clothes moving through the water, so detergent does not circulate and the spin comes out unbalanced. Running consistently under half full wastes water and energy instead.
Add the Washing Machine Capacity Selectorwidget to your blog or website — free, responsive, no signup. Just keep the “Widget by AltFTool” credit link visible.
<iframe src="https://www.altftool.com/embed/widget/washing-machine-capacity-selector"
title="Washing Machine Capacity Selector — free AltFTool widget"
width="100%" height="640" style="border:0;border-radius:12px;overflow:hidden"
loading="lazy" referrerpolicy="no-referrer-when-downgrade"></iframe>
<p style="font-size:12px;margin:4px 0 0">Widget by <a href="https://www.altftool.com/tools/all/washing-machine-capacity-selector?utm_source=embed&utm_medium=widget">AltFTool — free online tools</a></p>