Pace Calculator
Overview
Convert running pace to speed (min/mile ↔ mph), predict race finish times for 5K, 10K, half marathon, and marathon distances
Key Facts
| Field | Value |
|---|---|
| Calculator ID | pace |
| Category | Health |
| Vertical | Health & Fitness |
| App route | /verticals/health/pace |
| API endpoint | /api/public/calculate?id=pace |
Inputs
| Input ID | Label | Type | Required | Default | Constraints |
|---|---|---|---|---|---|
distanceUnit | Distance Unit | select | Yes | miles | - |
paceMinutesMile | Pace (minutes per mile) | number | No | 8 | min 3, max 20, step 1 |
paceSecondsMile | Pace (seconds per mile) | number | No | 30 | min 0, max 59, step 1 |
paceMinutesKm | Pace (minutes per km) | number | No | 5 | min 2, max 12, step 1 |
paceSecondsKm | Pace (seconds per km) | number | No | 17 | min 0, max 59, step 1 |
How to Use
- Choose Conversion — Select pace to speed or speed to pace conversion, and distance unit (miles/km)
- Enter Your Pace or Speed — Input minutes and seconds per mile/km, or your speed in mph/kph
- View Results & Race Times — See converted pace/speed and predicted finish times for 5K, 10K, half marathon, and marathon
Result Surfaces
| Output | Display Type | Format |
|---|---|---|
| Computed results | result-card | - |
Related Calculators
FAQ
What is a good running pace for beginners?
11-13 minutes per mile (5-5.5 mph) is typical for beginners. Don't worry about speed initially - focus on building endurance. Most runners improve 1-2 min/mile within 3-6 months of consistent training.
How do I calculate my race pace?
For your first race, use recent training pace + 15-30 seconds per mile as buffer. For experienced runners, use tempo run pace (comfortably hard effort for 20-40 minutes). Test your pace with a time trial 2-3 weeks before race day.
Should I train at race pace?
Most training should be SLOWER than race pace (easy/recovery runs at 60-70% effort). Do tempo runs at 15-30 sec/mile slower, and intervals 30-60 sec/mile faster. Only 20% of training should be at or above race pace.
Evidence
src/lib/calculators/registry.ts(metadata)src/lib/calculators/page-registry.ts(page/HowTo metadata)src/lib/calculators/health/pace.ts(calculator config)