How it works
A walkthrough, end to end.
- 1
Enter density (g/cm³ or kg/m³) and volume.
- 2
See mass in grams, kilograms, and pounds.
- 3
Useful for chemistry, physics, and material weight estimates.
Reference
Mass
m = ρ × V. Use consistent units.
Use cases
What you can do with this.
Material weight
Find weight of a steel bar from dimensions and density.
Liquid weight
Mass of water in a tank for plumbing checks.
Chemistry stoichiometry
Get mass from solution volume × density.
Shipping weight
Estimate parcel mass from material and volume.
Engineering parts
Mass of cast or 3D-printed parts.
FAQ
Frequently asked.
Mass is amount of matter (kg). Weight is force = mass × g. Use weight calculator for force.
No. All math runs in your browser.
Look up reference table for your material.
1 kg = 2.2046 lb.