Home Back

Half Marathon Race Pace Chart

Pace Calculation Formula:

\[ P = \frac{T}{D} \]

Where:
P = Pace (min/mile or min/km)
T = Time (minutes)
D = Distance (miles or km, e.g., 13.1 or 21.0975)

hours
minutes

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is a Half Marathon Pace Chart?

A Half Marathon Pace Chart helps runners determine the pace they need to maintain to achieve their target finish time for a 13.1-mile (21.0975 km) race. It converts your goal time into a per-mile or per-kilometer pace.

2. How Does the Calculator Work?

The calculator uses the simple formula:

\[ P = \frac{T}{D} \]

Where:

Explanation: The formula divides your total race time by the race distance to determine the pace you need to maintain throughout the race.

3. Importance of Pace Calculation

Details: Knowing your target pace helps with race strategy, prevents starting too fast, and ensures even energy distribution. It's crucial for achieving your goal time.

4. Using the Calculator

Tips: Enter your target finish time in hours and minutes, select your preferred distance unit (miles or kilometers), and click calculate. The calculator will show the pace you need to maintain.

5. Frequently Asked Questions (FAQ)

Q1: What's a good half marathon pace for beginners?
A: For first-timers, 10-12 minutes per mile (6:15-7:30 per km) is common. More experienced runners might aim for 7-9 min/mile (4:20-5:35 per km).

Q2: Should I account for hills in my pace?
A: Yes, adjust your target pace for hilly courses. Add 5-10 seconds per mile for significant elevation gain.

Q3: How does temperature affect pace?
A: Hot weather can slow you by 1-3% per 10°F above 55°F (13°C). Factor this into your race plan.

Q4: What's negative splitting?
A: Running the second half faster than the first. Many experts recommend aiming for a 1-3% faster second half.

Q5: How accurate is this for actual race conditions?
A: This gives theoretical pace. Actual race pace may vary due to terrain, weather, and race conditions.

Half Marathon Race Pace Chart© - All Rights Reserved 2025