# Weight Calculator (Physics)

> Calculate weight force, mass, or gravitational acceleration.

Page: https://askcalculators.com/calculator/physics-weight-calculator/
Definition: https://askcalculators.com/calculator/physics-weight-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/physics-weight-calculator/schema.json
Version: 1.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/physics-weight-calculator/?solveFor=weight&weight=98.0665&mass=10&gravity=9.80665

## Inputs
- solveFor: Solve for; type=select; required; default=weight; values=weight|mass|gravity
- weight: Weight force (N); type=number; required; default=98.0665
- mass: Mass (kg); type=number; required; default=10; min=0.000001
- gravity: Gravity (m/s²); type=number; required; default=9.80665; min=0.000001

## Outputs
- result: Solved value; format=number; primary
- unit: Unit; format=text

## Formula
weight force W = mass m × gravitational acceleration g

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.