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Running Pace Calculator

Pace per km, speed and 5K/10K splits.

Best for: Use it to set a race-day target, plan training runs, or convert a finish time into a pace.

Complete guide
Why this result happened View assumptions
Country (units):

Input

How it's calculated & sources
The Running Pace Calculator uses the standard formula for this calculation. It runs entirely in your browser, so your inputs are never uploaded. Figures are educational estimates, not professional advice — verify important decisions with a qualified expert. Last reviewed June 2026.
Key assumptions
  • Even pace assumed across the distance

Educational estimate only — not medical advice. Consult a qualified healthcare professional for decisions about your health.

Free & no sign-up · runs entirely in your browser. Results are estimates for general information, not professional advice — verify important decisions with a qualified expert. Last reviewed June 2026.

How it works

Pace = Total Time / Distance

Speed (km/h) = Distance / (Time in hours)

Example

10 km in 50:00 = 5:00 / km pace, 12.0 km/h.

Frequently asked questions

How to improve pace?+

Mix tempo runs, intervals, and easy long runs. Consistency beats intensity.

Continue your journey

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Complete guide

Quick answers

Short, sourced answers to the questions people (and AI assistants) ask most.

What is Running Pace?
A running pace calculator converts between time, distance, and pace — telling you your minutes-per-kilometre (or mile), your speed, and your projected splits.
Why does Running Pace matter?
It is the core measure of running speed and is used to predict race times.
How is Running Pace calculated?
Pace = time ÷ distance (minutes per unit distance); speed = distance ÷ time. From a target pace it projects finish times for common race distances. Formula: Pace = Time ÷ Distance | Speed = Distance ÷ Time.
What is a good running pace?
A 5:00/km pace is 12 km/h and finishes a 5K in 25 minutes. Recreational runners often sit around 6–7 min/km; elite marathoners hold close to 3 min/km.
What are common running pace mistakes?
Confusing pace (time per distance) with speed (distance per time).
When should you use the Running Pace Calculator?
Use it to set a race-day target, plan training runs, or convert a finish time into a pace.

What is the Running Pace Calculator?

A running pace calculator converts between time, distance, and pace — telling you your minutes-per-kilometre (or mile), your speed, and your projected splits.

How the Running Pace Calculator works

Pace = time ÷ distance (minutes per unit distance); speed = distance ÷ time. From a target pace it projects finish times for common race distances.

Pace = Time ÷ Distance | Speed = Distance ÷ Time
  1. Enter your pace — how long it takes to cover a set distance, like minutes per kilometer or mile.
  2. Enter your distance — how far you travel or plan to, for a run, walk or trip.
  3. Read the result, then change any input to compare scenarios instantly — the Running Pace Calculator recalculates as you type.

Understanding the inputs

What each value means, why it matters, and a typical range — so you can fill in the calculator with confidence.

Pace

How long it takes to cover a set distance, like minutes per kilometer or mile.

Why it matters:
It is the core measure of running speed and is used to predict race times.
Typical range:
Recreational runners often run 5 to 7 minutes per kilometer.
How it affects results:
  • Higher: A higher (slower) pace means less speed.
  • Lower: A lower (faster) pace means more speed.

Common mistake: Mixing per-kilometer and per-mile pace.

Distance

How far you travel or plan to, for a run, walk or trip.

Why it matters:
With pace or time it gives speed, calories or arrival estimates.
Typical range:
Any value; common race distances are 5K, 10K, half and full marathon.
How it affects results:
  • Higher: More time and energy needed.
  • Lower: Less time and energy needed.

Common mistake: Mixing kilometers and miles between fields.

What impacts results most

  1. 1.
    Distance (High impact)One side of the pace equation.
  2. 2.
    Time (High impact)The other side of the pace equation.

Key assumptions

  • Even pace assumed across the distance

What's a typical value?

A 5:00/km pace is 12 km/h and finishes a 5K in 25 minutes. Recreational runners often sit around 6–7 min/km; elite marathoners hold close to 3 min/km.

Pace and speed conversions

4:00 /km6:26 /mi15.0 km/h9.3 mph
4:30 /km7:15 /mi13.3 km/h8.3 mph
5:00 /km8:03 /mi12.0 km/h7.5 mph
5:30 /km8:51 /mi10.9 km/h6.8 mph
6:00 /km9:39 /mi10.0 km/h6.2 mph
7:00 /km11:16 /mi8.6 km/h5.3 mph

Worked example

5 km run in 25 minutes: Pace = 25 ÷ 5 = 5:00 per km; speed = 12 km/h.

Common mistakes to avoid

  • Confusing pace (time per distance) with speed (distance per time).
  • Mixing kilometres and miles in the same calculation.
  • Planning a fast start that can't be held for even splits.

Related concepts

How Running Pace connects to the concepts around it.

Resting Heart Rate:
Heartbeats per minute at rest, a fitness marker.
Max Heart Rate:
The highest safe heart rate, about 220 minus age.

Reviewed sources & methodology

Methodology: Professional Estimate · Last reviewed June 2026.

Keywords: running, pace, speed.

This tool is for general information only and is not medical advice. Consult a qualified healthcare professional for decisions about your health.

Reviewed by the Free Tools Galaxy editorial team · Updated June 2026 · Calculated privately in your browser.

Frequently asked questions

Is the Running Pace Calculator free to use?+

Yes. Every tool on Free Tools Galaxy is 100% free, runs in your browser and requires no signup.

How accurate is the Running Pace Calculator?+

Running Pace Calculator uses the standard running pace formula in double-precision arithmetic, so the same inputs always produce the same result and you can verify any figure by hand. It is an educational estimate — real-world outcomes depend on your actual rates, rules and assumptions.

Do you store my inputs?+

No. The Running Pace Calculator runs entirely in your browser. Nothing is uploaded or saved to a server.

Can I use the Running Pace Calculator on mobile?+

Yes — the interface is fully responsive and works on phones, tablets and desktops.

What are common mistakes to avoid?+

The most frequent mistake is mixing units. Double-check your inputs use a single, consistent unit before clicking Calculate.

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Pace per km, speed and 5K/10K splits.

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