Choose the right calculator
Crop an image to an aspect ratio
Plan exact pixel dimensions and margins for landscape, square or portrait crops. Compare image area removed before editing your photo.
Planning a time-lapse shoot
Start with your shooting window or desired clip length. Check frames, start-to-start intervals and storage for saved stills.
Fitting two unequal prints into one frame
Use the measured frame insert size to derive borders, or set borders to size a new mat. The tool keeps the prints unchanged.
Planning video storage
Use duration and average video plus audio bitrate. Resolution by itself does not determine the file size.
Sending a file
Use file size and upload speed, then allow for less than full throughput. Use download speed for a download.
Printing an image
Start with pixel dimensions and a target pixels-per-inch value to find the physical print dimensions.
Budgeting equipment power
Use average operating draw and run time. A power supply’s maximum rating may differ from actual usage.
Put the numbers to work
The aquarium tool is a separate geometric volume estimate. It uses internal dimensions, actual water height, and displacement; it is not a stocking or dosing guide.