How accurate are race time projections?

Projections assume you maintain the same effort level and have trained appropriately for the longer distance. Real race times depend on training, course terrain, weather, and race-day factors. Use them as general targets.

What pace do I need for a sub-4-hour marathon?

A sub-4-hour marathon requires an average pace of 9:09 per mile or 5:41 per kilometer. That's maintaining about 6.55 mph for 26.2 miles.

Should I pace differently for different distances?

Yes! You can typically hold a faster pace for shorter distances. Many runners are 30-60 seconds per mile slower in a marathon than a 5K. Use this calculator to understand the difference.

What's the difference between pace and cadence?

Pace is time per distance unit (min/mile). Cadence is steps per minute (SPM). They're related but different. Optimal cadence for most runners is 160-180 SPM, regardless of pace.

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Pace Calculator

Calculate your pace per mile or kilometer, predict race times, and analyze your running or walking performance

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Calculate Your Running or Walking Pace

Whether you're training for a race or tracking your fitness walks, our pace calculator helps you understand your performance. Calculate your pace per mile or kilometer, convert between pace and speed, and project finish times for popular race distances from 5K to marathon.

Understanding Pace vs Speed

Pace is the time it takes to cover one unit of distance (e.g., 8:30 per mile). Speed is the distance covered per unit of time (e.g., 7 mph). Runners typically use pace because it's easier to maintain a consistent effort. Our calculator shows both metrics and predicts race times based on your current pace.

Pace Calculation Formula

Pace = Time ÷ Distance

How to Calculate Your Pace

Common Use Cases

Race Training

Set pace goals and project finish times for upcoming races.

Workout Analysis

Calculate your pace after a run to track improvement over time.

Walking Fitness

Monitor walking pace for fitness tracking and daily exercise goals.

Treadmill Conversion

Convert treadmill speed settings to outdoor pace equivalents.

Frequently Asked Questions

Most beginners run between 10-13 minutes per mile (6-8 min/km). Focus on completing the distance comfortably rather than speed. As fitness improves, pace naturally decreases.