Run Pace Calculator - PaceCalc

PaceCalc is the pace calculator runners actually want to open.

Pick any distance, set a goal time, get the exact pace and full split schedule — then export a card worth posting.

One tool. Three modes. Pick two, get the third.

• PACE mode — Set distance and target time to get your per-km or per-mile pace. • TIME mode — Set distance and target pace to calculate your finish time. • DISTANCE mode — Set time and pace to calculate how far you’ll go.

WHY RUNNERS USE PACECALC

• Race-ready splits — even, negative, positive, or custom. Watch-ready. • 24 built-in distances — 5K, 10K, half marathon, marathon, ultras, track repeats, and more. • Saved race plans with a real countdown to race day. • Share cards designed to be screenshotted. Choose from Broadside, Terminal Receipt, or Minimal layouts. • Lock Screen widget showing days until your next race. • Switch units anytime — kilometers, miles, or treadmill speed. • App Intents support — ask Siri “Calculate marathon pace for 3:30” and it works.

DESIGNED, NOT GENERATED

Custom typography using Instrument Serif and JetBrains Mono. A signature colon accent on every pace and time. Paper-on-clay and ink-on-paper themes. No stock icons. No template UI.

FREE. PRIVATE. OFFLINE.

• Free forever — no ads, subscriptions, or in-app purchases. • No account, sign-up, or email capture. • Fully offline. No analytics. No third-party SDKs. • Apple privacy label: “Data Not Collected.”

BUILT FOR SERIOUS RUNNERS

PaceCalc is for runners who screenshot their splits and post them.

BQ chasers. Half and full marathoners. Track athletes running 400m repeats. Triathletes dialing in the run leg. Coaches building race plans for athletes.

If you’ve ever opened a generic calculator app, given up, and done the pace math in your head — PaceCalc is for you.

Made by a runner. Free forever.