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Science Calculators

Specific Weight Calculator

Verified formula Updated Jun 2026 Private — runs on your device

Enter details
kg/m³
m/s²
Verified formula Private

Specific weight

9,810.00

For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.

How to use the Specific Weight Calculator

The Specific Weight Calculator works out your specific weight in an instant. Enter density and gravity and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.

  1. Enter the density.
  2. Enter the gravity.
  3. Read off your specific weight — the calculator updates automatically, with no button to press.

Formula

The Specific Weight Calculator uses the formula:

Specific weight = Density × Gravity

Worked example

For example, with density of 1,000 kg/m³ and gravity of 9.81 m/s², the specific weight is 9,810.00.

Inputs used
Density 1,000 kg/m³
Gravity 9.81 m/s²
Results
Specific weight 9,810.00

Results are estimates for educational use, not professional advice.

Key terms explained

Density
Mass per unit volume, calculated as mass ÷ volume.

Frequently asked questions

It is weight per unit volume: density × gravity. Water has a specific weight of about 9,810 N/m³.

Density is mass per volume; specific weight is weight per volume, so it includes gravity.

Newtons per cubic metre (N/m³) when density is in kg/m³ and gravity in m/s².

In fluid mechanics and civil engineering for pressure, buoyancy and structural loads.

The Specific Weight Calculator uses the formula: Specific weight = Density × Gravity. For example, with density of 1,000 kg/m³ and gravity of 9.81 m/s², the specific weight is 9,810.00.

Enter the density. Enter the gravity. Read off your specific weight — the calculator updates automatically, with no button to press.

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