Clothing Layer Calculator — What to Wear Running
Calculate what to wear based on temperature, wind and conditions.
Temperature for this process
Enter the wind
Enter the rain
Enter the effort level
How We Calculate This
The 10-15 Degree Rule
When running, your body generates significant heat. The general rule is to dress as if the temperature is 10-15°C warmer than it actually is:
Effective Temperature = Feels Like Temp + Intensity Offset (8-12°C)
Wind and rain lower the effective temperature, while higher intensity raises your body heat production. This calculator combines all factors to recommend appropriate clothing layers.
Frequently Asked Questions
Related Calculators
Shoe Mileage Calculator
Track shoe mileage and estimate when to replace your running shoes.
Shoe Size Calculator
Convert running shoe sizes between UK, US and EU systems.
Shoe Rotation Calculator
Plan your shoe rotation schedule to extend shoe life.
Reflective Gear Calculator
Check if you need reflective gear based on your running time.
Hydration Pack Calculator
Calculate the hydration pack capacity you need for long runs.
Last updated: February 2026
All calculations are estimates. Always consult a coach or medical professional for personalised training advice.