The split calculator built around how you race

Splits matched to how you race

SplitSwim learns whether you race like a sprinter, mid-distance, or distance swimmer, then builds optimal splits for any event and goal time. Convert SCY, SCM, and LCM — and take a plan to warm-up, not a generic average.

Coming soon on the App Store Get support

The current app does not collect personal information. Times you enter stay on your device.

Everyday race tools

One toolkit for the wall, the warm-up, and the goal sheet

Smart Split

See your racing style — sprint, mid, or distance — then get target splits shaped by similar top-level races, scaled to your goal time.

Split Calculator

Even splits for any event, from a 50 to a mile. Recalculate instantly when the goal time changes.

Time Converter

Convert between SCY, SCM, and LCM with NCAA-style factors so course changes don’t scramble your plan.

Time Standards

Search qualifying times and motivational cuts for the meets you’re chasing — club through college.

How it works

Add the times you already have

1

Save your personal bests

Enter the times you already swim. SplitSwim turns them into a racing-style index.
2

Pick the event and the goal

Choose the race in front of you and the time you want to hit — SCY or LCM.
3

Take the splits to warm-up

Get a pacing plan that fits how you race, not a chart that assumes even splits for everyone.