The race time improvement calculator takes i want to improve by and your race time and returns your better time, 10 % and 1 %. It is built for quick answers, for checking somebody else’s arithmetic, and for the moments when a formula book is not within reach.
What Is the Race Time Improvement Calculator?
The race time improvement calculator turns i want to improve by and your race time into your better time, 10 % and 1 %.
It is a quick way to get from the numbers you have to the number you need, without setting up a spreadsheet or reaching for a formula.
How the Race Time Improvement Works
Each result follows from the ones before it, and the calculator shows every step, so a surprising answer can be traced back to the input that caused it.
Round your inputs to the precision you actually know, and keep more precision than that in the intermediate steps.
Getting a Result You Can Trust
Run the calculation twice with slightly different inputs. A sensible calculator moves its output in proportion; a wild change points to a unit or a decimal point problem in what you entered.
Write the inputs down next to the answer. It takes a moment and it is the difference between a number you can explain and one you cannot.
A Worked Example
Working through an example, with i want to improve by set to 10, your race time set to 5, the calculator returns 1 % of 4.95, and 2 % of 4.9, and 3 % of 4.85. Substitute your own figures and the same steps produce the same kind of answer.
Frequently Asked Questions
What do I need to work out your better time?
Enter i want to improve by and your race time. The calculator then works through the relationship and reports your better time, 10 % and 1 %.
What does the race time improvement actually calculate?
It takes i want to improve by and your race time and converts them into your better time, 10 % and 1 % using the standard relationship for this problem. Each step is applied in turn, so every output is traceable back to the numbers you typed in.
How should I enter i want to improve by?
Use the value you actually have, in the unit shown next to the field. Enter every value in the same unit system. The calculator assumes the figures you supply are consistent, so it cannot correct a mistake that happens before the calculation starts.
Why does a small change in one value move the answer so much?
That happens when an output depends on a ratio, because dividing by a small number magnifies any change in it. Check the units first, then check whether the value you entered is in the range the relationship was designed for.
Does anything you type get stored?
No. The whole calculation runs inside your browser, and nothing you enter is uploaded, logged or sent anywhere.