Physics

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Potential Energy Calculator.

Calculate gravitational potential energy from mass, height, and gravity.

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Results update as you type.

02 / ANSWER

Mass

Height

Gravity

Potential energy

0.000000J

Results update automatically as you type.

Use Cases

Physics homework and exam prep

Quickly verify potential energy calculations for problems involving objects at various heights and gravitational conditions.

Example: Calculate the energy of a 2 kg book on a 3 m shelf with Earth's gravity.

Engineering and design calculations

Estimate the energy involved in lifting or positioning masses in mechanical systems, such as cranes or elevators.

Example: Find the potential energy of a 500 kg load raised 10 m.

Frequently Asked Questions

What is gravitational potential energy?: Gravitational potential energy is the energy an object possesses due to its position in a gravitational field. It is calculated as the product of mass, gravitational acceleration, and height above a reference point.
How do I use this calculator?: Enter the object's mass in kilograms, its height in meters, and the gravitational acceleration (default is Earth's 9.8 m/s²). The calculator will multiply these values to give the potential energy in joules.
Can I use this for other planets?: Yes, you can adjust the gravity field to match other celestial bodies. For example, use 1.62 m/s² for the Moon or 3.71 m/s² for Mars to calculate potential energy there.

Tips & Common Mistakes

Tips

Ensure mass is in kilograms and height in meters to get energy in joules.
Use the standard gravity value 9.8 m/s² for Earth unless you know a more precise local value.
Remember that height is measured from a reference point, like the ground or a tabletop.
For quick estimates, round gravity to 10 m/s² to simplify mental math.

Common Mistakes to Avoid

Using grams instead of kilograms for mass, which gives energy 1000 times too small.
Forgetting to convert height to meters if it's given in centimeters or feet.
Using the wrong gravity value, such as using 9.8 for the Moon or other planets.

Last updated: August 13, 2026

Use Cases

Physics homework and exam prep

Quickly verify potential energy calculations for problems involving objects at various heights and gravitational conditions.

Example: Calculate the energy of a 2 kg book on a 3 m shelf with Earth's gravity.

Engineering and design calculations

Estimate the energy involved in lifting or positioning masses in mechanical systems, such as cranes or elevators.

Example: Find the potential energy of a 500 kg load raised 10 m.

Frequently Asked Questions

What is gravitational potential energy?

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field. It is calculated as the product of mass, gravitational acceleration, and height above a reference point.

How do I use this calculator?

Enter the object's mass in kilograms, its height in meters, and the gravitational acceleration (default is Earth's 9.8 m/s²). The calculator will multiply these values to give the potential energy in joules.

Can I use this for other planets?

Yes, you can adjust the gravity field to match other celestial bodies. For example, use 1.62 m/s² for the Moon or 3.71 m/s² for Mars to calculate potential energy there.

Tips & Common Mistakes

Tips

Ensure mass is in kilograms and height in meters to get energy in joules.
Use the standard gravity value 9.8 m/s² for Earth unless you know a more precise local value.
Remember that height is measured from a reference point, like the ground or a tabletop.
For quick estimates, round gravity to 10 m/s² to simplify mental math.

Common Mistakes to Avoid

Using grams instead of kilograms for mass, which gives energy 1000 times too small.
Forgetting to convert height to meters if it's given in centimeters or feet.
Using the wrong gravity value, such as using 9.8 for the Moon or other planets.

Use Cases

Physics homework and exam prep

Quickly verify potential energy calculations for problems involving objects at various heights and gravitational conditions.

Example: Calculate the energy of a 2 kg book on a 3 m shelf with Earth's gravity.

Engineering and design calculations

Estimate the energy involved in lifting or positioning masses in mechanical systems, such as cranes or elevators.

Example: Find the potential energy of a 500 kg load raised 10 m.

Frequently Asked Questions

What is gravitational potential energy?

How do I use this calculator?

Can I use this for other planets?

Yes, you can adjust the gravity field to match other celestial bodies. For example, use 1.62 m/s² for the Moon or 3.71 m/s² for Mars to calculate potential energy there.

Tips & Common Mistakes

Tips

Ensure mass is in kilograms and height in meters to get energy in joules.
Use the standard gravity value 9.8 m/s² for Earth unless you know a more precise local value.
Remember that height is measured from a reference point, like the ground or a tabletop.
For quick estimates, round gravity to 10 m/s² to simplify mental math.

Common Mistakes to Avoid

Using grams instead of kilograms for mass, which gives energy 1000 times too small.
Forgetting to convert height to meters if it's given in centimeters or feet.
Using the wrong gravity value, such as using 9.8 for the Moon or other planets.