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⏱️ Bike Pace Calculator

Work out your average speed, pace per kilometre, and pace per mile from a training ride or race split.

Example: 00:45:30 for 45 minutes 30 seconds.

Average Speed

36.9 km/h

(36.9 km/h • 22.9 mph)

Pace per km

1:38

Pace per mile

2:37

Knowing both pace and speed helps structure interval sessions (e.g., 5-minute VO₂ intervals) and pace control for triathlons, sportives, and gran fondos.

How to Use This Calculator

1

Log ride distance

Enter the course length in kilometres or miles.

2

Record elapsed time

Use total moving time from your bike computer.

3

Review pace metrics

Check average speed plus pace per km and per mile.

4

Plan future sessions

Use pace data to design training zones or race targets.

Formula

Average Speed = Distance ÷ Time • Pace = Time ÷ Distance

Convert ride time to decimal hours/minutes for accurate results. Switch units by toggling between kilometres and miles. Pace is displayed in mm:ss per distance unit.

Example

40 km in 1:05:00 → Avg speed = 40 ÷ 1.083 h = 36.9 km/h. Pace per km = 65 min ÷ 40 = 1:37.5. Pace per mile ≈ 2:36.

Variables

  • Distance: Ride length
  • Time: Elapsed riding time
  • Pace: Minutes per km/mile

Understanding Bike Pace

Pace metrics help triathletes and time-triallists stay within power or heart-rate targets. Knowing average speed also assists sportive riders planning rest stops and finish times.

Training Applications

  • Convert wattage-based workouts into speed goals on familiar terrain.
  • Cross-check indoor smart trainer pace estimates with outdoor benchmarks.
  • Use pace to evaluate aerodynamic equipment changes.

Race Planning

  • Determine required pace to hit a target time (e.g., sub-1-hour 40 km TT).
  • Balance pacing around climbs by adjusting pace per km goals.
  • Monitor fatigue by comparing early vs late lap pace splits.

Frequently Asked Questions

Does this account for stops?

Use moving time for training analysis. Include stopped time only if you want average pace reflecting breaks.

How accurate is pace in hilly rides?

Speed fluctuates with terrain. Pace still reflects average effort but consider power for more precision on climbs.

Can I export results?

Copy the displayed metrics into training logs or spreadsheets for future reference.

Does temperature or wind factor in?

No. This tool focuses on time and distance. Adjust expectations for adverse weather or headwinds.

What if I enter pace instead?

Convert the pace back to a distance/time pair before using this calculator. Dedicated pace planners may be added later.