Sit and Reach Test Calculator

Sit and Reach Test Calculator

The sit-and-reach is the most widely used field test of hamstring and lower-back flexibility, from school PE to health screenings. Enter how far past your toes you reached and this calculator rates your flexibility against general adult benchmarks. Use it to spot tight hamstrings, track mobility work, and set a realistic next target.

The sit-and-reach test measures hamstring and lower-back flexibility. Sit with legs straight, feet against the box, and reach forward slowly; record how far past your toes your fingertips reach (a negative number if you cannot reach them). As a rough adult guide, more than about 5 cm past the toes is average and beyond 25 cm is excellent. Warm up first, do not bounce, and norms differ by age and sex.