Lens focal length to 35 mm-equivalent focal length
Type a value in mm to get it in mm eq. instantly.
35mm eq.
That's 1.35× as long as a phone’s main camera, while a normal lens is 1.43× longer.
Convert the other way: mm eq. to mm
What it means
How wide does it see?
Angles are for a rectilinear lens focused at infinity on a 3:2 frame. Fisheye lenses and close focusing change them.
The math
How to convert mm to mm eq.
Angle of view is 2 × arctan(d ÷ 2f), with d the frame’s width, height or diagonal (36, 24 or 43.3 mm for full frame) and f the 35 mm-equivalent focal length.
Example: 35 mm = 35 mm eq..
Lens focal lengths below are for Full frame (crop 1). Change it above and they update.
Every unit
Your lens in every unit
Tables
mm to mm eq. conversion table
| mm | mm eq. |
|---|---|
| 10 mm | 10 mm eq. |
| 14 mm | 14 mm eq. |
| 16 mm | 16 mm eq. |
| 18 mm | 18 mm eq. |
| 24 mm | 24 mm eq. |
| 28 mm | 28 mm eq. |
| 35 mm | 35 mm eq. |
| 50 mm | 50 mm eq. |
| 85 mm | 85 mm eq. |
| 105 mm | 105 mm eq. |
| 135 mm | 135 mm eq. |
| 200 mm | 200 mm eq. |
| 300 mm | 300 mm eq. |
| 600 mm | 600 mm eq. |
mm eq. to mm conversion table
| mm eq. | mm |
|---|---|
| 10 mm eq. | 10 mm |
| 14 mm eq. | 14 mm |
| 16 mm eq. | 16 mm |
| 18 mm eq. | 18 mm |
| 24 mm eq. | 24 mm |
| 28 mm eq. | 28 mm |
| 35 mm eq. | 35 mm |
| 50 mm eq. | 50 mm |
| 85 mm eq. | 85 mm |
| 105 mm eq. | 105 mm |
| 135 mm eq. | 135 mm |
| 200 mm eq. | 200 mm |
| 300 mm eq. | 300 mm |
| 600 mm eq. | 600 mm |
Quick answers
Quick answers
- How many mm eq. is 1 mm?
- 1 mm is 1 mm eq..
- How many mm eq. is 10 mm?
- 10 mm is 10 mm eq..
- How many mm eq. is 35 mm?
- 35 mm is 35 mm eq..
The units
About these units
Lens focal length (mm)
The number printed on the lens, for the sensor chosen above.
35 mm-equivalent focal length (mm eq.)
The full-frame focal length that gives the same view.
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