FitNumbers ‑ Body Calculators

Add six health calculators that match your brand. Help shoppers pick the right products faster.

FitNumbers adds six health calculators to your store as theme blocks: BMI, daily calories, macro split, water intake, body fat (US Navy method), and protein needs. Place them on any page in the theme editor and adjust colors, units, and spacing with live preview - no code required. Shoppers enter their numbers and get instant results with clear guidance on any device. All calculators support metric and imperial units, are translated into 11 languages, and follow your store's look.

• Six calculators: BMI, calories, macros, water, body fat, and protein
• Colors, labels, and units adjust in the theme editor with live preview
• Translated into 11 languages, metric and imperial units
• Responsive layouts with clear input validation on every device
• One-click add to theme from the app - no code changes