Skip to main content
Calcimator

Running & Cycling Calculator

Comprehensive endurance sports calculator combining pace, speed, heart rate zones, calorie burn, VO2 max estimation, race predictions, and split times. For runners and cyclists of all levels.

Progress0%

Step 1 of 4

miles/km
How to Use This Calculator
  1. Follow the step-by-step wizard — complete each step before moving to the next. This guided approach ensures you provide all the necessary information in a logical order.
  2. Activity Type — Choose your activity for appropriate calculations. Choose from: Running, Cycling. default: 0.
  3. Unit System — Choose your preferred measurement system. Choose from: Imperial (miles, lbs), Metric (km, kg). default: 0.
  4. Distance — Total distance covered. Accepts values from 0.1 miles/km to 500 miles/km (default: 3.1 miles/km).
  5. Hours — Hours component of total time. Accepts values from 0 to 48 (default: 0).
  6. Minutes — Minutes component of total time. Accepts values from 0 to 59 (default: 25).
  7. Seconds — Seconds component of total time. Accepts values from 0 to 59 (default: 0).
  8. Age — Used for heart rate zones and VO2 max calculation. Accepts values from 10 years to 100 years (default: 30 years).
  9. Weight — Used for calorie calculations. Accepts values from 50 lbs/kg to 500 lbs/kg (default: 150 lbs/kg).
  10. Gender — Used for VO2 max estimation. Choose from: Male, Female. default: 0.
  11. Resting Heart Rate — Measure in the morning before getting up. Accepts values from 30 bpm to 120 bpm (default: 60 bpm).
  12. Expand "Advanced Options" for additional fine-tuning. These optional inputs let you model more specific scenarios:
  13. Max Heart Rate — Leave at 0 to calculate from age (220 - age). Accepts values from 0 bpm to 220 bpm (default: 0 bpm).
  14. Split Display — How to display split times. Choose from: Per Mile, Per Kilometer. default: 0.
  15. Once all inputs are set, review your results in the Results panel. Here's what each output means:
  16. Pace (per mile) — your calculated result. This is the primary result of this calculator.
  17. Calories Burned — shown as a numeric value. This is the primary result of this calculator.
  18. Pace (per km) — your calculated result.
  19. Speed — shown as a numeric value.
  20. Speed — shown as a numeric value.
  21. Calories per Hour — shown as a numeric value.
  22. Est. VO2 Max — shown as a numeric value.
  23. Fitness Level — your calculated result.
  24. Max Heart Rate — shown as a numeric value.
  25. Zone 2 (Aerobic) — Best for building endurance base.
  26. Zone 4 (Threshold) — For improving speed and lactate threshold.
  27. Predicted 5K — your calculated result.
  28. Predicted 10K — your calculated result.
  29. Predicted Half Marathon — your calculated result.
  30. Predicted Marathon — your calculated result.
  31. Predicted 25 mi — your calculated result.
  32. Predicted 50 mi — your calculated result.
  33. Predicted 100 km — your calculated result.
  34. Predicted Century (100 mi) — your calculated result.
  35. Scroll down to explore 2 charts (Heart Rate Training Zones, Pace Comparison) for a visual breakdown of the data.
  36. Check the Split Times for a detailed row-by-row breakdown. This is useful for spotting trends or finding values at specific points.
  37. Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
Ad Placeholder

Related Calculators

Running Pace Calculator

Calculate your running pace per mile and per kilometer. Get predicted race times for 5K, 10K, half marathon, and marathon distances.

Cycling Speed Calculator

Calculate cycling speed, distance, or time. Includes pace, calorie burn estimates, and metric conversions.

Heart Rate Zones Calculator

Calculate your personalized heart rate training zones using the Karvonen method. Optimize your cardio workouts for fat burn, endurance, or performance.

Calorie Burn Calculator

Calculate calories burned during exercise based on weight, duration, activity type (MET), and heart rate. Track your workout intensity.

VO₂ Max Estimate Calculator

Estimate your VO2 max (maximum oxygen consumption) based on heart rate. Assess cardiovascular fitness.

Body Composition Calculator

BMI, body fat, TDEE, macros, and ideal weight in one tool

Ad Placeholder