ToolForge

Crop Factor Calculator

Calculate crop factor, 35mm equivalent focal length and aperture for any sensor.

How to use

Pick a sensor type or enter dimensions to compute equivalents.

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Aperture Stop ComparatorCompare two f-stops: stops apart and light ratio - for exposure and depth of field. Depth of Field CalculatorCompute near/far limits and depth of field from focal length, aperture, distance and sensor size. Exposure CalculatorCompute exposure value (EV) from aperture, shutter and ISO, with equivalent settings. Hyperfocal Distance CalculatorCalculate hyperfocal distance from focal length, aperture and circle of confusion. Megapixel CalculatorCalculate total pixels, megapixels and aspect ratio from image dimensions. ND Filter Exposure CalculatorCalculate exposure time with an ND filter from base shutter speed and stops.

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