500 litres
500 litre water tank: capacity & sizing
500 L = 132 US gallons = 0.5 m³. Full weight ≈ 500 kg of water.
| Diameter | Required height |
|---|---|
| 0.90 m dia | 0.79 m tall |
| 1.10 m dia | 0.53 m tall |
| 1.30 m dia | 0.38 m tall |
| Household | Coverage |
|---|---|
| Family of 3 | 1.2 days |
| Family of 4 | 0.9 days |
| Family of 5 | 0.7 days |
| Family of 6 | 0.6 days |
Manufactured polyethylene tanks of this rating vary in actual dimensions by brand and layer count — the table above is pure geometry so you can sanity-check any spec sheet. Verify your tank's measurements with the litres calculator, and size against your household with the IS 1172 sizing tool.
FAQ
How many gallons is a 500 litre tank?
132 US gallons (110 imperial gallons).
How long does 500 litres last a family of four?
About 0.9 days at the IS 1172 norm of 135 litres per person per day.
How much does a full 500 litre tank weigh?
About 500 kg of water alone — design the slab or staging for it.