Wind Adjusted Pace Calculator

Wind Adjusted Pace Calculator

Planning a Run

You have a target pace in mind (e.g., 5:30/km). Enter that pace and see what your actual pace will be with the current wind conditions. Use this to adjust your race strategy or workout pace.

Example: 'I want to run at 5:30/km effort. With this 15 km/h headwind, I'll actually run 5:45/km.'

:

Or enter speed instead of pace

Wind speed as measured at weather station (10m height)

Terrain affects ground-level wind speed

N E S W

Headwind (0°)

Default: 70 kg (154 lbs). Weight has minimal effect on wind calculations.

How Wind Affects Running

Wind resistance increases exponentially with speed. Research by Pugh (1971) shows:

  • Oxygen consumption increases as the square of wind velocity
  • Headwinds significantly slow you down
  • Tailwinds provide assistance, but less than headwinds slow you
  • Crosswinds still create drag, even when not directly opposing

Wind Profile & Terrain

Wind measurements are taken at 10m height. Ground-level wind is affected by:

  • Urban/Forest: ~50% of measured wind
  • Suburban: ~70% of measured wind
  • Rural/Park: ~85% of measured wind
  • Exposed/Track: 100% of measured wind

Tips for Running in Wind

Headwind Strategy

• Lean slightly forward to reduce frontal area

• Shorten stride, increase cadence

• Focus on effort, not pace

• Draft behind other runners when possible

Tailwind Strategy

• Maintain form, don't overstride

• Use the assist but stay controlled

• Save energy for headwind sections

• Be aware tailwind benefit is less than headwind cost

Frequently Asked Questions

How much does wind affect my pace?

A 10 mph headwind can slow you by 10-15 seconds per mile at marathon pace. The effect increases exponentially with speed.

Why is tailwind benefit less than headwind cost?

Running mechanics are optimized for forward motion. Headwinds create additional work, while tailwinds reduce work but don't eliminate all metabolic costs.

What about drafting behind other runners?

Drafting 1 meter behind another runner can reduce air resistance by up to 80%, saving significant energy. This is why pack running is common in races.

Should I adjust my race strategy for wind?

Yes! Plan to run slightly faster on tailwind sections and slower on headwind sections. Focus on effort level rather than pace when facing strong winds.

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