Weight Calculator
Calculate weight based on mass and gravitational acceleration. Useful for physics, engineering, or everyday conversions.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Weight Calculator
- Enter Mass: Type a positive number (e.g., 10) in the Mass field. Choose the unit: kg, g, or lb.
- Enter Gravitational Acceleration: Type a positive number (e.g., 9.81) in the Gravitational Acceleration field. Choose the unit: m/s² (metric) or ft/s² (imperial).
- Calculate: Click the Calculate Weight button. The result appears below in Newtons (N) and pounds-force (lbf).
- Auto-update: Changing any input automatically recalculates the result.
Note: The calculator converts all inputs to metric (kg and m/s²) internally. For example, 1 lb = 0.453592 kg, and 1 ft/s² = 0.3048 m/s². The formula used is: Weight = Mass × Gravity.
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Frequently Asked Questions
Mass is the amount of matter in an object, measured in kg. Weight is the force exerted by gravity on that mass, measured in newtons (N). Weight = mass × gravitational acceleration.
Standard gravity on Earth is approximately 9.81 m/s² or 32.17 ft/s².
Yes, simply enter the gravitational acceleration for the desired planet. For example, Mars gravity is about 3.71 m/s².