Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Relativity
Lorentz Transformation Calculator
Transforms the spacetime coordinates (x, t) of an event from one inertial reference frame to another moving at relativistic velocity. Used in special relativity to reconcile observations made by different observers.
Fill in the required fields to see your result.
Relativity
Mass-Energy Equivalence Calculator
Converts mass directly into its equivalent energy using Einstein's E = mc². Useful for nuclear physics problems, particle annihilation scenarios, or understanding the energy content of any amount of matter.
Fill in the required fields to see your result.
Key differences
| Lorentz Transformation Calculator | Mass-Energy Equivalence Calculator | |
|---|---|---|
| Category | Relativity | Relativity |
| Inputs required | 4 | 2 |
| Result | Transformed Value (varies) | Total Energy (J) |
| What it does | Transforms the spacetime coordinates (x, t) of an event from one inertial reference frame to another moving at relativistic velocity. Used in special relativity to reconcile observations made by different observers. | Converts mass directly into its equivalent energy using Einstein's E = mc². Useful for nuclear physics problems, particle annihilation scenarios, or understanding the energy content of any amount of matter. |