About this tool
About this tool
Estimate photo count, clip duration and storage, check exposure and writing time, and work backward from a desired clip duration.
A practical tool, with a checkable method
This site is maintained as part of the Small Boss Calculator collection. It offers free calculators without an account in Traditional Chinese, English, Spanish and Hindi. Each guide explains the method, assumptions, worked examples and limits.
Calculations and data
Your numbers are processed only in this page’s browser memory. Refreshing restores the example. We do not ask for your name, payment details or uploaded files.
Checking a result
Compare the guide’s examples first, then check units and input conditions. Convert your measurements to the units shown beside each field. Display rounding does not change the underlying calculation.