All Free Photography Calculators

Calculate exposure settings, EV values, reciprocity, flash exposure, ND filters, HDR brackets and more.

Calculate depth of field, hyperfocal distance, circle of confusion, bokeh, focus stacking and more.

Calculate crop factors, equivalent focal lengths, field of view, magnification, extension tubes and more.

Calculate flash guide numbers, inverse square law, key-to-fill ratios, softbox sizes and light modifiers.

Calculate print sizes, DPI requirements, megapixel needs, aspect ratios, crops, frames and viewing distances.

Calculate video file sizes, bitrates, frame rates, storage needs, shutter angles, slow motion and time-lapses.

Calculate star trail exposure times, the 500 rule, NPF rule, moon phases and polar alignment.

Calculate rule of thirds, golden ratio, golden spiral, panorama settings, photo merge and symmetry guides.

Calculate shutter speeds, ISO, white balance, burst mode, buffer depth, memory card capacity and sensor specs.

Calculate photography rates, print pricing, packages, travel costs, equipment depreciation and hourly rates.