Engineering / Browser calculator

Weight Calculator

Weight Calculator works from the inputs you provide and returns weight force (n). Use the calculation panel to explore a scenario, then check the formula and limitations before applying the result.

Your inputs

Minimum: 0
Minimum: 0

Your results

Enter your values and calculate to see the result.

Estimates depend on the stated method and entered quantities. Check applicable standards before using a result for a real-world design or safety decision.

Formula and calculation method

Weight force = mass × gravitational acceleration.

Mass is kilograms; weight is force in newtons. Gravity is editable.

How to use weight calculator

  1. Set Mass (kg). The example below uses 70.
  2. Set Gravity (m/s²). The example below uses 9.80665.
  3. Select Calculate to update the result. Reset restores the illustrated inputs. Copy, print or download your own result if you need a record.

Worked example

Example inputs
Mass (kg)
70
Gravity (m/s²)
9.80665
Weight force (N)
686.4655

Factors affecting your result

Mass is kilograms; weight is force in newtons. Gravity is editable.

Changing mass (kg) changes the scenario being evaluated. Adjust one input at a time when comparing results, keep a copy of the assumptions, and compare values using the same unit and period. A precise arithmetic result does not make an uncertain assumption precise.

Frequently asked questions

How does the weight calculator work?

Weight force = mass × gravitational acceleration.

What inputs does Weight Calculator need?

Enter mass (kg), gravity (m/s²). Choose values that correspond to the same situation and measurement convention.

How should I interpret the weight calculator result?

Mass is kilograms; weight is force in newtons. Gravity is editable.

Are my weight calculator inputs uploaded?

No. The calculation runs in this browser. Favorites, recent tool names, theme and formatting preferences may be saved locally, but calculation inputs are not sent to a calculation server or stored by this website. Shared links do not include entered values.

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