Skip to content
HealthCalc

Grip Strength Calculator

Find your grip strength percentile by age and gender. Based on clinical norms (Mathiowetz 1985 · EWGSOP2). Includes longevity risk, sarcopenia screening, and improvement targets.

Sex
kg

Enter your best score from 3 trials. Don't have a dynamometer? Try Body Fat Calculator →

📌 Use your dominant hand reading. Norms are based on dominant-hand measurements with elbow at 90°, shoulder relaxed.

kgJAMARStandardGrip= Longevity

Grip strength is the #1 single-metric predictor of all-cause mortality (PURE Study, 2015)

Enter your grip strength to see results

Your percentile, longevity risk, sarcopenia screening, and improvement targets will appear here.

Grip Strength & Longevity: What the Science Says

17%
higher CV mortality per 5 kg decline (PURE study, 2015)
139K
participants across 17 countries in the landmark study
#1
single-metric predictor without blood tests (Dr. Peter Attia)

Grip strength is what longevity researchers call a "phenotypic biomarker" — it integrates muscle quality, neuromuscular efficiency, and systemic inflammation into a single measurable number. Unlike BMI or resting heart rate, grip strength declines are strongly predictive of mortality independent of age, physical activity, and other health markers.

About the Normative Data

This calculator uses composite norms from Mathiowetz et al. (1985) — the most widely cited grip strength normative database — updated with data from Bohannon's 2019 systematic review. Values apply to adults tested with the Jamar dynamometer at the second handle position, seated with elbow at 90°. EWGSOP2 sarcopenia cut-points: <27 kg (men), <16 kg (women).

Frequently Asked Questions

What is a good grip strength by age?
Average grip strength for men peaks at 49–50 kg between ages 25–34, declining to about 28–35 kg by age 70+. For women, peak values are 29–31 kg at ages 25–39, declining to 18–22 kg by 70+. The 50th percentile for your age and sex is considered average. This calculator uses the Mathiowetz (1985) normative database — the gold-standard clinical reference.
Why does grip strength predict longevity?
Grip strength is a proxy for overall musculoskeletal health and neuromuscular function. The PURE study (Leong et al., 2015) across 139,691 participants found every 5 kg decrease in grip strength was associated with a 17% higher risk of cardiovascular mortality. It reflects systemic muscle quality, inflammation levels, and nervous system health — making it one of the strongest single-metric predictors of all-cause mortality available without blood tests.
What dynamometer should I use?
The Jamar hydraulic hand dynamometer is the clinical gold standard. For home use, any calibrated digital dynamometer (Camry, Baseline) measured at the second handle position gives comparable results. Sit with elbow at 90°, shoulder relaxed, forearm neutral. Do 3 trials per hand with 30–60 seconds rest. Record your best score.
What is the EWGSOP2 sarcopenia cut-point?
The European Working Group on Sarcopenia in Older People (EWGSOP2) recommends grip strength cut-points of <27 kg for men and <16 kg for women as triggers for further muscle function assessment, regardless of age. These clinical cut-points are incorporated into this calculator's sarcopenia screening flag.
How can I improve my grip strength?
Most effective methods: (1) Compound pulling movements — deadlifts, rows, pull-ups (grip is built as a byproduct). (2) Farmer carries with heavy dumbbells or kettlebells — 3-4 sets, twice weekly. (3) Plate pinches — hold two plates by fingertips for 30-60 seconds. (4) Adequate protein intake (1.6–2.2 g/kg) to support muscle synthesis. Studies show 3–8 kg gains are achievable in 8–12 weeks of consistent training.
At what age does grip strength start declining?
Grip strength peaks between ages 25–39, then gradually declines. The decline is modest from 40–55 (roughly 1–2% per year), then accelerates after age 60. By age 75+, average grip is about 40% lower than peak values. This accelerated decline after 60 is largely driven by sarcopenia (age-related muscle loss) and declining neuromuscular efficiency. Strength training significantly slows this decline.