1. What is the Half Marathon Speed Calculator?

The Half Marathon Speed Calculator computes your average speed based on your finish time for a half marathon (13.1 miles). This helps runners understand their pace and plan training strategies.

2. How Does the Calculator Work?

The calculator uses the simple speed formula:

Where:

• 13.1 — The distance of a half marathon in miles
• time_hours — Your finish time in hours

Explanation: The equation calculates average speed by dividing the fixed distance by the time taken to complete it.

3. Importance of Speed Calculation

Details: Knowing your average speed helps in setting realistic goals, planning race strategies, and tracking performance improvements over time.

4. Using the Calculator

Tips: Enter your half marathon finish time in hours (e.g., 1.75 hours for 1 hour 45 minutes). The time must be greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What's a good average speed for a half marathon?
A: For beginners, 5-7 mph is common. Elite runners often maintain 10+ mph.

Q2: How do I convert my time from hours:minutes to decimal hours?
A: Divide minutes by 60 (e.g., 1:45 = 1 + 45/60 = 1.75 hours).

Q3: Does this account for elevation changes?
A: No, this calculates average speed over the total distance regardless of course difficulty.

Q4: Can I use this for other distances?
A: The formula works for any distance, but this calculator is specifically calibrated for 13.1 miles.

Q5: How accurate is this calculation?
A: It provides mathematically precise average speed, but actual pace may vary throughout the race.