What is a good grip strength?

For men aged 30–39, the 50th percentile is approximately 48 kg. For women of the same age, it's about 30 kg. 'Good' is generally above the 75th percentile for your age and sex.

Why does grip strength matter?

Grip strength is considered a useful indicator of overall upper body strength and general fitness. Research has found associations between grip strength and functional independence, particularly in older adults.

What is a concerning asymmetry?

A difference greater than 10% between hands may indicate unilateral weakness. The dominant hand is typically 5–10% stronger than the non-dominant hand, so small differences are normal.

How should I test grip strength?

Use a handgrip dynamometer with the arm at your side, elbow at 90 degrees. Squeeze maximally for 3–5 seconds. Take the best of 3 attempts per hand with 30 seconds rest between tries.

Grip Strength Calculator

Name: Grip Strength Calculator
Author: Manish Kumar

Age Group	25th	50th	75th	90th
20–29	41	47	53	59
30–39	42	48	55	61
40–49	39	46	52	58
50–59	36	42	48	54
60–69	32	38	44	49
70–+	27	33	39	44

Key Takeaways

Grip strength peaks in the 30–39 age range for both sexes, with males averaging ~48 kg and females ~30 kg dominant hand.^[1]
An asymmetry greater than 10% between hands may warrant attention, as it could indicate unilateral weakness or prior injury.^[2]
Grip strength is considered a useful proxy for overall upper body strength and general fitness in research settings.^[3]

How the Assessment Works

Your dominant hand grip score is compared against published age-sex normative data to produce a percentile ranking and classification.

asymmetry% = |dominant − non-dominant| ÷ max(dominant, non-dominant) × 100

relative strength = dominant grip ÷ body weight

Normative data is based on published population studies using standard handgrip dynamometry protocols.^[1]

For overall strength assessment, see the One Rep Max Calculator. For wrist and forearm training load planning, check the Brzycki Equation Calculator.

Limitations and Important Notes

Normative data varies between studies and populations. The values used here represent commonly cited norms and may not perfectly match every demographic.
Grip strength testing is affected by hand position, dynamometer type, and testing protocol.
A single measurement may not reflect true capacity — standard protocols use the best of 3 attempts per hand.
This tool is for informational and journaling purposes only. It does not constitute personalized advice.

Frequently Asked Questions

Sources & References

Normative grip strength values in adults. Various. PMC (2024)
Grip strength: a comprehensive review. Various. PMC (2019)
Grip strength normative reference values. Various. JOSPT (2018)

Manish Kumar

Certified Personal Trainer & Sports Nutritionist

NASM-CPTCertified Sports Nutritionist10+ Years Experience500+ Clients Coached

NASM-certified fitness and nutrition coach with over 10 years of hands-on experience helping people build strength, lose fat, and live healthier lives. Specializing in gym-based workouts with a strong focus on lifting technique, biomechanics, and practical exercise science. Through FitLifeRegime, sharing the tools, tips, and insights that have worked for hundreds of clients — helping you start your own fitness journey with confidence and clarity.

Learn more about Manish

NASM Certified

Certified Personal Trainer & Sports Nutritionist from the National Academy of Sports Medicine

This tool is for informational and journaling purposes only.

I am NOT a doctor.

Grip Strength Calculator