Free Tool

CYCLING TO RUNNING CONVERSION CALCULATOR

Match a run and ride by population-average energy cost using published 2024 Compendium MET values. The result is a planning estimate—not equivalent performance or impact load.

CONVERSION DIRECTION

START WITH

RUN DISTANCE

RUN SPEED

TARGET RIDE SPEED

METHOD AND EVIDENCE BOUNDARY

The calculator uses the named running and bicycling activity codes in the 2024 Adult Compendium of Physical Activities. MET-minutes equal MET value × session minutes. The target duration is source MET-minutes ÷ target MET value. Body mass cancels when comparing the same person, so the tool does not need weight.

METs are standardized population values designed to estimate activity energy cost, not to prove individual equivalence. A 2026 systematic review and meta-analysis found no clear between-group differences in the limited running/cycling cross-training evidence, but explicitly said the available evidence does not establish interchangeability.

Exercise mode matters. A review of running and cycling physiology found modality-specific VO2max, threshold, heart rate, economy and neuromuscular responses. That is why this tool no longer predicts FTP from a running time or running race performance from FTP.

Last updated: 26 August 2026 · Model version 2.0 · Reviewed by Anthony Walsh for source and calculation scope

Quick answer

Choose Run → Ride or Ride → Run, enter a distance or duration and select the published speed categories on both sides. The calculator matches MET-minutes using the 2024 Adult Compendium of Physical Activities and returns a population-average energy-cost duration and distance. It does not predict FTP, VDOT, race performance, tissue load or equal training adaptation.

WHAT IT DOES

This tool answers one narrow question: how long and how far would a selected activity in the other sport take to produce the same population-average MET-minute exposure? Each running and cycling option maps to a named 2024 Compendium activity code. The source MET value is multiplied by minutes, then divided by the target MET value. This is an energy-cost match, not evidence that the sessions are interchangeable.

WHO IT'S FOR

→Runners replacing some aerobic work with cycling during an off-season or reduced-impact block
→Cyclists adding running and needing a conservative planning reference
→Triathletes and coaches comparing session energy cost without pretending the sports are identical
→Anyone searching for a cycling-to-running ratio who needs the assumptions shown

HOW IT WORKS

MET-minutes = published MET value × session minutes. Target minutes = source MET-minutes ÷ target MET value. When distance is entered, the selected source speed converts it to duration; the selected target speed converts the matched duration back to distance. Body mass cancels when comparing the same person, so no weight input is required. The arithmetic is transparent, but MET values remain population estimates.

01
Choose the direction
Select Run → Ride or Ride → Run. This determines which published activity categories appear on each side.
02
Enter distance or time
Use a known session distance in kilometres or miles, or enter its duration in minutes.
03
Select both speed categories
Choose the source and target speeds that best describe the sessions. Every option displays its 2024 Compendium MET value.
04
Read the scoped match
Use the returned duration and distance as a population-average energy-cost reference, then preserve the purpose, specificity and recovery constraints of the original session.

EXAMPLE CALCULATIONS

Thirty-minute run to a moderate ride

· Run: 30 minutes at 6 mph
· Ride: 12 mph category

The 9.3-MET run produces 279 MET-minutes. At 8.0 MET, the matched ride is about 35 minutes and 7.0 miles. This matches estimated energy cost only.

One-hour ride to a steady run

· Ride: 60 minutes at 14 mph
· Run: 6 mph

The 10.0-MET ride produces 600 MET-minutes. At 9.3 MET, the matched run is about 65 minutes and 6.5 miles. The impact and sport-specific load are not matched.

LIMITATIONS

Equal MET-minutes do not mean equal race fitness, tissue load, recovery cost, training stress or adaptation. MET categories estimate population-average energy expenditure. Running economy, cycling efficiency, gradient, wind, surface, drafting, coasting, bike fit and sport-specific skill can move an individual's cost. Running impact and eccentric load have no cycling-distance equivalent. Do not use this result as injury-rehabilitation clearance or as a substitute for sport-specific race preparation.

When to see a coach

Use coaching or appropriately qualified clinical support when a substitution affects injury rehabilitation, return to running, race preparation or a high-load multisport week. A calculator cannot assess tissue tolerance, symptoms, recovery or whether the original session should be replaced at all.

FREQUENTLY ASKED QUESTIONS

How many cycling miles equal one running mile?+

There is no fixed evidence-backed ratio. Speed, terrain, wind, drafting and individual economy change the answer. Select a speed category on each side and this tool will calculate a disclosed MET-minute energy-cost match instead of applying one universal 1:3 rule.

Does equal MET-minutes mean equal training stress?+

No. MET-minutes estimate energy cost from population values. They do not capture impact, eccentric loading, sport-specific muscle recruitment, session distribution, recovery or the individual's response. The result is a planning reference, not a training-load identity.

Can cycling replace a run during injury rehabilitation?+

Cycling may preserve some aerobic work with less impact, but the calculator cannot decide whether replacement is clinically appropriate. It does not match tissue loading or assess symptoms. Follow the rehabilitation plan from an appropriately qualified professional.

Why does the calculator ask for both speeds?+

The 2024 Compendium assigns different MET values to different running and cycling speeds, and distance requires a speed to become time. Naming both categories prevents a slow recovery ride and a fast non-drafting ride from being treated as the same activity.