Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Optics
Telescope Magnification Calculator
Calculate the magnification, resolution, and light-gathering power of any telescope from its objective focal length, eyepiece, and aperture. Ideal for astronomers choosing eyepieces for a target.
Fill in the required fields to see your result.
Optics
Optical Magnification Calculator
Find the total magnification of a microscope or telescope from objective and eyepiece focal lengths. Useful for students, lab technicians, and amateur astronomers configuring optical instruments.
Fill in the required fields to see your result.
Key differences
| Telescope Magnification Calculator | Optical Magnification Calculator | |
|---|---|---|
| Category | Optics | Optics |
| Inputs required | 2 | 4 |
| Result | Magnification (Γ) | Total Magnification (Γ) |
| What it does | Calculate the magnification, resolution, and light-gathering power of any telescope from its objective focal length, eyepiece, and aperture. Ideal for astronomers choosing eyepieces for a target. | Find the total magnification of a microscope or telescope from objective and eyepiece focal lengths. Useful for students, lab technicians, and amateur astronomers configuring optical instruments. |