SplitLab

5K Pace Calculator

8:03/mi

7.46mph

5.000 km · ~3.11 mi

h:mm:ss. 25:00 is twenty-five minutes. 18:00 is eighteen.
First half
8:03/mi
Second half
8:03/mi
Half split
12:30

Kilometer splits

1 km

1.00 km

5:00

2 km

2.00 km

10:00

3 km

3.00 km

15:00

4 km

4.00 km

20:00

5 km

5.00 km

25:00

Mile splits

1 mi

1.00 mi

8:03

2 mi

2.00 mi

16:06

3 mi

3.00 mi

24:08

Finish

3.11 mi

25:00

Even pace for 5.000 km, not a race-equivalence predictor. Pace calculator · Marathon pace · Race time predictor · 15K pace · 8K pace · 3K pace · 1500m · 1.5 mile run · 2 mile pace · Mile pace · Pace card.

Worked examples

  • 25:00 5K

    8:03 /mi · 5:00 /km

  • 20:00 5K

    6:26 /mi · 4:00 /km

  • 18:00 5K

    5:48 /mi · 3:36 /km

Formulas

Arithmetic, not physiology. Distance is locked at 5.000 km (3.10686 mi). Pace = time / distance. This is even pace, not race-equivalence. For a 5K→marathon estimate, use the race time predictor (Riegel).

  • pace = time / 5.000 km
  • 5K = 5.000 km = 3.10685596 mi
  • 1 mile = 1.609344 km

Same math as the running pace calculator · marathon pace · split calculator · critical speed · mile pace · 1.5 mile run · 2 mile pace · 15K pace · 8K pace · 3K pace · 1500m pace.

FAQ

What pace is a 25-minute 5K?

A 25:00 5K is 8:03 per mile, or 5:00 per kilometer, at even pace. That is 5.000 km in 25 minutes on the international mile (1.609344 km). Load the 25:00 chip to see the giant pace and splits.

What pace is a 20-minute 5K?

A 20:00 5K is 6:26 per mile, or 4:00 per kilometer, at even pace. The 20:00 chip fills the goal time and updates live.

How many miles is a 5K?

A 5K is 5.000 kilometers, which is 3.11 miles (exactly 3.10685596 mi using 1 mile = 1.609344 km). SplitLab locks this page to that distance so a 25:00 finish is 8:03/mi, not a guess from a rounded 3.1.

How do I run even 5K splits?

Hit each kilometer in the same time. A 25:00 5K is 5:00 per km: 5:00, 10:00, 15:00, 20:00, 25:00. Mile clocks land at about 8:03, 16:06, and 24:09, then 51 seconds to the line. A slight negative split runs the first 2.5 km about 3% slower than even and the second 2.5 km about 3% faster; finish time still matches the goal.

Does this predict my marathon?

No. This page is even-pace arithmetic for 5.000 km. It does not estimate a marathon, half, or 10K from a 5K. For that fatigue-based estimate, use the race time predictor (Riegel).