Specific Gravity Calculator

Compute specific gravity (relative density) of a substance against water at 1000 kg/m³ or any custom reference fluid.

Frequently Asked Questions

What is specific gravity?

The ratio of a substance's density to a reference density (usually water at 1000 kg/m³). It is dimensionless.

What is the specific gravity of water?

Exactly 1 when water is its own reference. Pure water at 4 °C is the standard reference for SG.

Does SG predict floating?

Yes - SG < 1 floats in water; SG > 1 sinks. Container shape matters too (boats float despite steel SG > 1).

Important Disclaimer: Estimates for informational purposes only.

This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.