Meteor Impact Energy Calculator
Result
Kinetic energy (J)200000000000
TNT equivalent (megatons)0.0000478011
↗ Space
Estimate kinetic energy for an incoming meteoroid from mass and speed.
Formula
Energy = ½ × Mass × Velocity²
- The calculator uses classical kinetic energy and also converts joules to megatons of TNT equivalent.
- The main inputs are Mass, Speed. Enter them in the units and format shown in the calculator.
- Use the units, labels and assumptions shown beside each input so the formula is applied consistently.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Meteor Impact Energy
Inputs
- Mass: 1000 kg
- Speed: 20 km/s
A 1,000 kg object at 20 km/s carries about 2 × 10¹¹ joules of kinetic energy before atmospheric losses.
Sample result: Calculating…
Frequently asked questions
What does this calculator estimate?
It estimates pre-impact kinetic energy from mass and speed.
Is this an exact mission-planning tool?
No. It is an educational calculator based on the stated constants and simplified assumptions.
How accurate is the result?
It does not model atmospheric breakup, angle, composition, crater coupling or relativistic effects.
What does the Meteor Impact Energy calculate?
Estimate kinetic energy for an incoming meteoroid from mass and speed.
Which values should I enter?
Enter Mass, Speed using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: Energy = ½ × Mass × Velocity².