Free tools · Homes
Home water footprint calculator
How much water does your home use? Enter your habits. See litres a day, m³ a month, your Kahramaa water bill, and the energy and CO2 it took to desalinate it.
Your water use
Fill in the form and press the button.
| Use | Litres a day |
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How we work it out
Litres per use are our assumptions: shower 9 litres a minute, toilet flush 6 litres, taps and cooking 15 litres per person a day, washing machine 60 litres a load, dishwasher 12 litres a load, garden hose 15 litres a minute, car wash with a hose 150 litres. A month is 30 days. The bill uses the Kahramaa villa (residential) water slabs. CO2 uses 0.58169 kg per kWh, the Qatar grid average (Ember 2024).
Sources
Questions
Where does Qatar's tap water come from?
Most of it is desalinated seawater. Making it takes a lot of energy, and Qatar's power comes from gas. So saving water in Qatar also saves energy and CO2.
How much energy does desalination use?
Seawater reverse osmosis uses up to 6 kWh of electricity per m³. The newest plants use about 3.5 kWh per m³ (World Nuclear Association). Older thermal plants also burn heat, which we do not count. We use 4 kWh per m³ by default.
What is the Kahramaa water tariff?
For homes, the first 20 m³ a month cost QAR 5.5 per m³, then QAR 7 up to 250 m³, then QAR 10. This is from Kahramaa's own tariff calculator.
What uses the most water at home?
In most homes, showers and the garden. A 10 minute shower at 9 litres a minute is 90 litres. Watering a villa garden with a hose for 10 minutes is about 150 litres.
Can I use AC condensate water?
Yes, for plants. It is free water that drips from your AC. Do not drink it. This tool does not count it because it does not show on your bill.
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