Catalyst Healthspan Calculators

About

Eleven free calculators that score the four pillars of healthspan: body composition, cardiorespiratory fitness, stability and strength. VO2 max percentile, handgrip against the AWGS sarcopenia threshold, waist-to-height ratio, the sitting-rising test, fitness age, protein intake, heart-rate zones, running pace, body fat, a fat-loss timeline, and how much of your weight loss on a GLP-1 is likely to be muscle. Every threshold is drawn from published research and cited on the page. Nothing sits behind a sign-up, and no result is stored. Built by Catalyst Performance, the best personal training studio in the Singapore CBD. We run the four-pillar Healthspan Assessment at Manulife Tower, and these calculators are the free version of what we measure in studio. Looking for personal training in Singapore? Start with the free Healthspan Audit. Built by Catalyst Performance, a best personal training studio in Singapore at Manulife Tower in the CBD. Our best personal trainers use the same numbers with pre-natal and post-natal clients returning to training, the over 50s, and seniors holding on to strength, balance and independence.

Problem & solution

Who it's for

Adults in Singapore, 30s through 70s, who want to know where they stand on healthy ageing.

• The Complimentary Healthspan Calculators From Singapore's Best Personal Training Studio

  11 evidence-based calculators for VO2 max, grip strength, waist-to-height, the sitting-rising test and more. Each one scores you against a published norm for your age and sex, and cites the research on the page. No sign-up, nothing stored, every calculator embeddable. Built by Catalyst Performance, a longevity and personal training studio at Manulife Tower in Singapore's CBD.

  NxGn Tools·Aug 30, 2026

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