Free Tools
Photography Calculators
Free, instant photography calculators. No signup, no ads — just useful tools for working photographers.
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Exposure Calculator
Calculate equivalent exposures instantly. Change one setting and see how to compensate with the others to maintain the same exposure.
Open tool →🔍Depth of Field Calculator
Calculate depth of field, hyperfocal distance, and near/far focus limits for any lens, aperture, and subject distance combination.
Open tool →📐Crop Factor Converter
Convert focal lengths and aperture equivalents between full-frame, APS-C, and Micro Four Thirds sensor sizes instantly.
Open tool →Learn the theory behind the tools
Understand exposure, depth of field, and sensor sizes with our in-depth educational guides.