Running Pace & Splits Calculator
Got a goal time in mind? See exactly what pace you need to hold and what the clock should read at every mile or kilometer along the way.
These are even splits — the same effort the whole way. Most races run better with a slightly faster second half (a negative split), so treat these as your baseline, not a hard rule.
How it works
It takes your goal distance and finish time, divides one by the other for your pace, then multiplies that pace out to build a cumulative split table — the time you should see as you cross each marker.
Switch between miles and kilometers depending on how your race is marked. The splits update instantly, so you can memorize a few checkpoints before you head out.
These are even splits, meaning identical effort the whole way. It's a clean baseline, but real races reward a smart pace plan more than a perfectly flat one.
Frequently asked questions
Should I actually run even splits?
Even splits are a great target for steady efforts and most training runs. On race day, though, a slightly faster second half — a negative split — usually produces a better finish than blasting the start and hanging on.
How do I use the split table during a race?
Pick a few checkpoints you'll pass — say every 5K, or the halfway mark — and note the target time. Glancing at your watch there tells you fast whether you're on pace without doing math mid-run.
Why doesn't my GPS watch match these splits exactly?
GPS drifts, and courses often measure slightly long because you can't run the perfect racing line. Expect small differences and pace off effort and landmarks, not just the watch.