Switch distances on or off. Tap ⋯ to edit one, make it the base or delete it. To type a time, tap it on the main screen.
Theme
App icon
The app icon is set when SplitCalc is installed. To change it, remove SplitCalc and install it again.
Drag to make times slower
Mouse wheel / trackpad
Pace line
SplitCalc
An effortless pace calculator for runners, swimmers, and other distance athletes.
I remembered a plastic handheld pace slider I used to have and how quickly you could find paces and splits with it. This is that, as an app. Drag anywhere and every split moves together.
Works offline once it's loaded. Your distances and settings stay on this device.
Built by Kevin Jantzer · kevin@jantzer.dev
Refresh downloads the latest version and resets the offline copy. Your distances and settings are kept.
- Oct 2026Rewritten again with an iOS 26 glass look. Works fully offline. Tap any time to type it, fling to keep it moving, times fit the screen. Pace line, yards, sideways scrolling and drag speed.
- Jun 2023Chrome 114 fix. Font size scales with the window.
- Jun 2022Themes, direction settings, font size, hide instead of delete, change the base distance.
- Jun 2022Rewritten from the ground up. Installable as an app.
- Mar 2015Initial release.