Converters · NUMORA
Gallon Water Weight Calculator
Pure water at 4°C: 1 L = 1 kg. US gallon ≈ 3.785 kg.
Open interactive calculatorHow to use
A popular explainer conversion.
Formula
kg = gallons × 3.785411784 (US, 4°C)
FAQ
Is this Gallon Water Weight calculator accurate?
The formula and assumptions are shown on the page, and the engine is covered by audit tests. Results are for reference — not financial or medical advice.
Do I need an account?
No. Calculations run in your browser. Recents can stay on this device.
What inputs do I need?
A popular explainer conversion.
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