Free Photography Calculators

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Exposure triangle, shutter speed, flash guide number, and ND filter calculators.

Depth of field, hyperfocal distance, field of view, and crop factor calculators.

Print size, aspect ratio, PPI, viewing distance, and framing calculators.

Memory card capacity, storage planning, time-lapse, and file size calculators.

Calculate equivalent exposure settings when you change one parameter. Adjusts aperture, shutter speed, or ISO to maintain the same exposure value.

Find the minimum shutter speed for sharp handheld photos using the reciprocal rule, adjusted for crop factor and image stabilization.

Calculate the new shutter speed when using an ND (neutral density) filter. Enter your base exposure and filter strength.

Calculate the depth of field for any lens, aperture, and subject distance combination.

Find the hyperfocal distance for maximum depth of field from half that distance to infinity. Essential for landscape photography.

Calculate the horizontal, vertical, and diagonal field of view for any focal length and sensor size.

Calculate the maximum print size at a given DPI from your image resolution. Find out how large you can print without losing quality.

Calculate crop dimensions for any target aspect ratio. Find the right crop from your original image dimensions.

Calculate how many photos fit on a memory card based on file format, resolution, and card capacity.

Calculate frames needed, total shoot time, and storage for time-lapse photography. Plan your interval and duration.