Grip Strength Norms Calculator

Use a calibrated hand dynamometer. Sit or stand with your elbow bent at about 90 degrees and your arm by your side, then squeeze as hard as you can for 3 to 5 seconds. Take the best of 2 to 3 attempts on your stronger (usually dominant) hand, and enter that single reading. Enter the value in kilograms or pounds to match the unit toggle.

It depends heavily on both. A 30-year-old man typically falls around 50 kg (110 lb) at the 50th percentile, while a 30-year-old woman sits near 30 kg (66 lb). Grip strength peaks in the late 20s to mid 30s and declines gradually after that, so the calculator compares your reading to reference values for your sex and age band. Ages 18 to 19 use the 20 to 24 band, and ages 85 to 89 use the 80 to 84 band.

Each age and sex group has reference grip values at the 5th, 25th, 50th, 75th, and 95th percentiles, drawn from adult normative data consistent with the US NIH Toolbox and Wang et al. 2018 reference values. Your reading is placed between the two nearest reference points by linear interpolation to estimate your percentile from 1 to 99. The percentile is then mapped to a rating from well below average to excellent.

The calculator flags readings under 27 kg for men and 16 kg for women, thresholds used by the EWGSOP2 2019 guideline to screen older adults for low muscle strength. They are not diagnostic thresholds for every adult. If your score is unexpectedly low or has dropped over time, raise it with a healthcare professional.

Handgrip strength is a population-level proxy for total-body strength and is linked to outcomes such as falls and recovery after illness or surgery. These associations do not predict an individual outcome. Clinicians and researchers may track grip strength as one health marker alongside a full assessment.

No. It is an educational tool that compares one grip reading to population reference values and is not a substitute for professional medical advice, diagnosis, or treatment. Results vary with dynamometer model, technique, hand tested, and time of day. For any health decision, consult a qualified clinician.