How to use this calculator
- Enter current and typical load using the same method.
- Add average sleep for the recent period.
- Rate soreness and fatigue honestly from 0 to 10.
- Use the index as a check-in prompt, not medical clearance.
#2756 · Sports & Gaming Tool
Running Training Load Recovery Need Calculator
Turn recent running load, sleep, soreness, and fatigue into a simple recovery-need index. The calculator highlights which self-reported factor is pushing the score higher so you can decide whether to keep, reduce, or postpone planned intensity.
Calculator
Planning inputsFormula
Recovery need = 40 × capped load ratio contribution + 25 × sleep deficit + 17.5 × soreness + 17.5 × fatigue
What the result means
A higher score indicates more reasons to consider recovery. It is deliberately sensitive to multiple warning signs rather than one training metric.
This is not a validated medical instrument. Stop and seek qualified care for severe pain, illness, dizziness, or concerning symptoms.
Example calculation
With 1,500 AU against a 1,300 baseline, 7.2 hours sleep, soreness 4, and fatigue 5, the recovery-need score is 38.44 / 100.
Tips for better results
- Use the same load method for current and baseline values.
- Score soreness before warming up.
- Look for multi-day trends.
- Reduce intensity when several warning signs rise together.
- Seek professional help for persistent symptoms.
Frequently asked questions
Can I use the recovery need estimate as a guarantee?
No. It is a planning estimate based on the values you enter; actual outcomes can differ.
What happens if one of my inputs is zero?
Zero is accepted only where it has a practical meaning. The calculator flags values that would make the calculation invalid.
Should I use weekly or monthly data?
Use the period requested by each field and convert your records consistently before entering them.
How often should I update this calculation?
Recalculate whenever pricing, volume, performance, or operating assumptions change materially.
What is the most important limitation?
It relies on self-reported inputs and cannot diagnose injury, illness, or overtraining.
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Variables and units
| Variable | Meaning |
|---|---|
| Load ratio | Current load ÷ typical load |
| Sleep deficit | Shortfall from 8 hours, capped |
| Soreness | Self-rating from 0 to 10 |
| Fatigue | Self-rating from 0 to 10 |