Fitness and training

Negative Split

Negative Split takes amount, times and turns them into a number you can read in one sitting. A simple product of the two figures you type. A planning sketch, not a diagnosis. It is a quick sense check in the browser, not a diagnosis.

Fitness Reviewed Runs in your browser

Your details

Enter amount, times.

What is this calculator?

Negative Split takes amount, times and turns them into a number you can read in one sitting. A simple product of the two figures you type. A planning sketch, not a diagnosis. It is a quick sense check in the browser, not a diagnosis.

How it works

Common questions

What is the negative split calculator?

It turns amount, times into a negative split figure you can read in one sitting. Use it as a guide, not a diagnosis.

Does this replace my GP?

No. The maths stays in your browser. Speak to a GP if you are worried about your health.

Can I treat the number as a target?

Treat it as a planning figure. Real weeks wobble. If a goal feels extreme, stop and get proper advice.

Example scenarios

Leila, chasing a PB

Amount 12, Times 4

48 total

Parvez, run-walk after a niggle

Amount 14.6, Times 4.9

71.5 total

Laila, lunch-hour miles

Amount 9.4, Times 3.1

29.1 total

Understanding your results

Treat this as a snapshot for negative split, not a verdict. If the number worries you, take it to your GP rather than stacking new rules on yourself.

Fitness Reviewed

About this result

Guidance only. Calculations run in your browser. Numbers are estimates, not a diagnosis.

How we calculate

A simple product of the two figures you type. A planning sketch, not a diagnosis.

Limitations

  • Illustration only.
  • Not personal medical advice.

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