Free running pace calculator with no signup. Enter any two of distance, time, or pace and instantly get your pace per mile and per kilometer, speed, split times, and race predictions.
| 1 mi | 9:00 |
| 2 mi | 18:00 |
| 3 mi | 27:01 |
| 3.11 mi | 28:00 |
| 5K | 27:58 |
| 10K | 58:19 |
| Half Marathon | 2:08:40 |
| Marathon | 4:28:16 |
Everything runs in your browser. Nothing you enter is sent anywhere or stored. Race-time estimates use Riegel's endurance formula and are a training guide, not a guarantee.
The Running Pace Calculator is a free online running pace calculator that solves for whatever you are missing: enter a distance and a finish time to get your pace, enter a distance and a pace to predict your finish time, or enter a time and a pace to see how far you can run. It shows your pace per mile and per kilometer, your speed in mph and km/h, a full mile-by-mile or kilometer split chart, and equivalent race-time estimates for the 5K, 10K, half marathon, and marathon using the proven Riegel endurance formula. Built for runners in the United States, it handles both miles and kilometers and includes one-tap presets for common race distances so you can plan a workout, set a goal pace, or check a treadmill time in seconds. This is one of Intellure's free tools, and like the rest of them it runs entirely in your browser with no signup and nothing sent to a server, so your training data stays private. Whether you are chasing a sub-4-hour marathon, dialing in tempo runs, or converting a race result into a target pace, this pace calculator does the math for you, and if you run a race, gym, or coaching business, Intellure's AI employee can handle the customer questions and bookings around it so you can focus on the running.
Runners plan around numbers, and so should your business. The people asking about your race entries, class times, coaching spots, or store hours are ready to commit, but most drop off when no one answers fast enough. Intellure gives you a managed AI employee that responds instantly across WhatsApp, Instagram, and your website, follows up with leads, and books sessions and appointments around the clock. One AI employee on a flexible monthly plan built around your budget, so you never lose a customer to a slow reply again.
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