Focal Length Equivalent Converter
Convert any lens focal length to its 35mm full-frame equivalent using the crop factor. Enter the focal length, pick your camera sensor — the true field of view appears instantly.
How to use
- Enter a value or select an option.
- Choose the sensor — the result updates live.
- See the extra details below too.
Note: The equivalent is for field of view only — for depth of field and noise, the aperture is also affected by the crop factor.
Tips
- A 50mm lens on a 1.5x crop sensor frames like a 75mm on full frame.
- Portrait shooters often prefer the 70–135mm full-frame-equivalent range.
- Remember aperture depth of field behaves differently on smaller sensors.
Frequently Asked Questions (FAQ)
What is the 35mm equivalent?
The focal length on a full-frame camera that gives the same field of view as your lens on a crop sensor; the tool applies the sensor crop factor automatically.
Which sensors are supported?
Full frame, Nikon/Sony and Canon APS-C, Micro Four Thirds, 1-inch, APS-H and Fuji GFX medium format.
Does the crop factor affect depth of field too?
The equivalent is for field of view only; for depth of field and noise, aperture is also affected by the crop factor.
What is a crop factor?
It is the ratio between a sensor's diagonal and a full-frame sensor's diagonal; the tool multiplies your lens's actual focal length by this number to get the 35mm equivalent.