Free pace calculator
Stop doing pace math the hard way
Distance, time, pace and speed — change any value and the others follow. Work it out free right here, then take Simple Pace Calculator to the start line: a free download for iPhone and iPad.
Free download · No account · No ads
Available on:iPhone & iPad
Try it right here
Type a distance and a target time. Pace and speed keep up.
Speed
6.555 mph
26.219 mi in 4:00:00 is 9:09/mi and 6.555 mph.
How it works
Three taps to an answer
No setup, no modes to learn, nothing to press when you are done.
Tap the number you want to change
Distance, time, pace or speed — tap any value on any card and type it in. No modes, no menus.
A lock holds one value still
The lock badge shows which value is being held fixed while you edit, and you tap it to move the lock. Hold pace and a new distance gives you a new finish time; hold distance and a new pace does the same.
The rest catches up on its own
There is no calculate button. Whatever you are not holding updates as you type or scroll.
Features
Everything you need for pace math. Nothing you don't.
All of this is in the free app.
Four values, always in sync
Distance, time, pace and speed sit in one stack. Change one and the others follow — that is the whole app.
Every race distance, built in
400 m, 5k, 10k, half-marathon, marathon, and the 50k, 50 mile, 100k and 100 mile ultra-marathons. When your distance matches a race, the card names it.
Miles and kilometers, row by row
Tap a unit label to switch it. Every row keeps its own units, so kilometers for distance while pace stays in minutes per mile is perfectly normal.
Speaks your language
The app follows your system language.
English, Dutch, French, German, Italian, Portuguese (Brazil), and Spanish.
Light, dark and eight accent colors
Choose System, Light or Dark, then pick from eight accent colors — each one brings a matching app icon with it.
Built for accessibility
Built for VoiceOver, Voice Control, Dynamic Type, Sufficient Contrast, and Reduced Motion.
Tips on your first run through
First-run callouts point out tap-to-edit, per-row units, the race distance list and the lock. Replay them any time from Settings.
The Classic layout, if you prefer it
The original interface is still in there. Switch back to it whenever you like, from Settings.
Arrange it your way
Reorder the main sections, hide Speed if you never use it, and long-press any value to copy it.
The tool row
Splits, ETA and Share — one tap from the main screen
Three tools sit under the calculator cards. Share is free for everyone; Splits and ETA come with Pro.
- Pro feature
Splits
Plan even, negative or positive splits and dial in exactly how much your pace shifts across the race. Split by 100 m, 200 m, 400 m, 1 km, 1 mi, 5 km, 5 mi, 10 km or 10 mi, by halves, thirds, quarters or fifths, or by any interval you type in yourself. Export the finished table to any app.
- Pro feature
ETA
Waiting for a runner somewhere on the course? Enter how far into the race you are standing, when they started and the pace you expect, and ETA gives you the clock time they reach you and a countdown that ticks down live. A gauge compares the pace they would need right now against the pace you expected, so you can see them drifting early or late.
Set an alert for a few minutes before, close the sheet, and the countdown keeps going on the main screen. The explainer inside is free to read before you buy.
- Included free
Share
Turn your distance, time and pace into a clean 1080 × 1080 image and send it wherever you like. Free for everyone — no Pro needed.
Tapping a locked tool still opens the real thing. You see the actual Splits or ETA screen, blurred behind a Go Pro button, before you decide anything.
Screenshots
See it running
Straight from version 5.5.0 on iPhone.
Screenshots from the app running on iPhone.
Your Race at a GlancePace, Time & More Set Your DistanceTime Updates Instantly Pick a Race Distance400m to Ultra Dial In Your TimePace Updates Instantly Find Your Perfect PaceTime Adjusts Instantly Plan Your Race SplitsEven, Negative or Positive Never Miss the MomentA Live Countdown to Arrival Share Your NumbersOne Tap to Send
Site or app
You just did the math here. So why the app?
The calculator on this page is free and always will be. The app is for the moments a browser is the wrong tool.
Right here, in your browser
- Free and instant — there is nothing to install.
- Works on any device with a browser.
- Ideal for planning a race at your desk.
Or start from a ready-made table:
In the app, in your pocket
- All calculations work offline — no signal needed at the start line.
- Race distances from 400 m to a 100 mile ultra-marathon, one tap away.
- The Share card free for everyone; Splits and ETA with Pro.
- Eight accent colors, light and dark, and the full accessibility set.
- A free download for iPhone and iPad.
Pricing
Free to use. Pro if you want the tools.
One purchase, one time. No subscription, no trial, no ads, ever.
Free
Everything you need to run the numbers
- Distance, time, pace and speed calculators
- Race distances from 400 m to a 100 mile ultra-marathon
- Independent units on every row — miles or kilometers
- The Share card — your numbers as a 1080 × 1080 image
- Light and dark, eight accent colors and matching app icons
- The Classic or the New interface, with reorderable sections
- VoiceOver, Voice Control, Dynamic Type, Sufficient Contrast and Reduced Motion
- All calculations work offline
- Seven languages
Pro
$2.99 (US), one-time
Everything in Free, plus
- Splits — even, negative or positive pacing at any interval, with export
- ETA — arrival time, live countdown, pace gauge, optional arrival alert, and a countdown badge that stays on the main screen
One-time purchase — no subscription, no trial. Price varies by region.
Bought the app during the paid period (October 2024 – February 2025)? Pro is already yours — nothing to buy.
Requires iOS 18 or iPadOS 18 or later.
Privacy
Your numbers stay yours
No ads. No tracking. No account. Your pace entries never leave your device.
Anonymous usage analytics — which screens get opened, which features get used — are on by default and can be switched off in Settings. They are never linked to you and never used for tracking.
The app asks for exactly one permission, ever: notifications, and only if you switch on the ETA arrival alert. It is off until you do. No location, no contacts, no photos, no health data.
Make every mile add up
Simple Pace Calculator is a free download on the App Store. Pro is a single purchase that unlocks Splits and ETA for good.
iPhone & iPad · Requires iOS 18 or iPadOS 18 or later.
Version 5.5.0