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Mobility tracking tool

Flexibility Assessment

Evaluate and track flexibility over time with three simple measurements you can repeat under the same conditions.

Start assessment How it works
3 repeatable tests Progress history No medical diagnosis

Your assessment

Record your current measurements

Enter your measurements below. The tool compares your latest saved assessment with your previous one.

Flexibility measurements

Use one decimal place if needed. Negative values are allowed where explained below.

Choose the date when you completed the measurements.
Centimetres beyond the toes. Use a negative number if you cannot reach your toes.
Centimetres of overlap. Use a negative number for the gap between fingers.
Centimetres from the wall while keeping the heel down.
Pain should not be pushed through. If a movement is painful, stop the assessment.

Your assessment history is stored locally in this browser.

How to use it

Make every assessment comparable

Consistent technique makes changes easier to understand over time.

1

Warm up gently

Start with a few minutes of easy movement so your body is not completely cold.

2

Use the same setup

Repeat the same surface, side, equipment and measurement method each time.

3

Move without bouncing

Use controlled movements and stop before pain. Do not force a larger number.

4

Retest consistently

Test on a regular schedule and compare the trend instead of one isolated result.

Flexibility explained

What does this assessment measure?

Flexibility is specific to the joint, movement and technique being tested. That is why this page shows three separate measurements instead of combining everything into one score.

Sit-and-reach

Sit with your legs extended and reach forward using the same box, ruler or reference point each time. Record how far your fingertips travel beyond the toes. If you cannot reach your toes, enter the distance as a negative number.

Shoulder reach

Reach one hand overhead and the other hand behind your back. Measure the overlap between your fingers, or the gap if they do not meet. Use the same arm position every time.

Knee-to-wall ankle mobility

Face a wall and move one foot backward until the front knee can touch the wall while the heel remains down. Record the toe-to-wall distance and repeat with the same leg during future assessments.

Important: This tool is for personal tracking and general fitness education. It does not diagnose an injury or replace advice from a qualified healthcare professional.

Common questions

Flexibility assessment FAQ

Why does this page not give me one overall flexibility score?

Flexibility varies by body area, movement technique and individual structure. Separate measurements provide more useful personal tracking than a single universal score.

How often should I repeat the assessment?

Choose a schedule that fits your routine, such as every few weeks. The most important factor is repeating the tests under similar conditions.

What should I do if a movement causes pain?

Stop that movement and do not force the range. If pain continues, returns repeatedly or concerns you, seek advice from a qualified healthcare professional.

Where is my history stored?

Saved assessments are stored in your browser’s local storage on this device. They are not sent to a server by this calculator. Clearing browser data may remove the history.

Safety reference: NHS home exercise and stretching guidance

This calculator is for general education and personal tracking only.

For education, not diagnosis. Calculator results and wellness articles are general information and are not a substitute for advice from a qualified health professional.