Force Calculator
Calculate force using F = ma
How to Use
- Select what you want to calculate (force, mass, or acceleration)
- Enter the known values in the input fields
- Choose the appropriate units for each value
- Click calculate to get your result
- View the result in multiple units for convenience
- Copy the results to your clipboard for later use
About This Tool
Our free force calculator uses Newton's Second Law of Motion (F = ma) to solve physics problems involving force, mass, and acceleration. Whether you need to calculate the force required to accelerate an object, find the mass given force and acceleration, or determine acceleration from force and mass, this calculator handles it all. Perfect for students, engineers, and anyone working with mechanics problems. The calculator supports multiple units including kilograms, grams, pounds, ounces for mass; meters per second squared, feet per second squared, and g-force for acceleration; and Newtons, pound-force, and dynes for force. All calculations happen instantly in your browser with complete privacy.
Frequently Asked Questions
What is Newton's Second Law?
Newton's Second Law states that force equals mass times acceleration (F = ma). This means the force acting on an object is equal to its mass multiplied by its acceleration.
What units does this calculator support?
Our force calculator supports kilograms, grams, pounds, and ounces for mass; meters per second squared, feet per second squared, and g-force for acceleration; and Newtons, pound-force, and dynes for force.
Can I calculate mass or acceleration from force?
Yes, you can solve for any variable. If you know force and acceleration, you can calculate mass. If you know force and mass, you can calculate acceleration.
What is the difference between mass and weight?
Mass is a measure of the amount of matter in an object (measured in kg), while weight is the force of gravity acting on an object (measured in N). Weight = mass × gravity.
