30 Free Fitness Calculators
Launch with BMI, BMR, TDEE, macros, hydration and essential fitness tools.
Build Fitness Pages Faster
Shortcodes and demo pages help you create calculator landing pages in minutes.
Start Free, Grow to Pro
Begin with the free plugin and unlock advanced calculator workflows later.
Premium Fitness Calculator Experience
FitNFO combines calculator tools, AI insights, nutrition planning and progress tracking in a premium WordPress-ready experience.
30 Free Fitness Calculators
for WordPress
BMI, BMR, TDEE, Macros, Body Fat, Water Intake and 24 more — free forever. Gutenberg block + shortcode included.
Everything You Need to Get Started
FitNFO Free gives your WordPress site 30 of the most-used fitness calculators — completely free, forever. No trials, no credit cards, no limitations on usage.
- Real, accurate formulas (Mifflin-St Jeor BMR, etc.)
- Metric + Imperial toggle on every calculator
- Native Gutenberg block
- Shortcodes for any page builder
- Dark mode support
- Mobile responsive + accessible (ARIA)
- Schema.org markup for SEO
✅ All 30 Free Calculators
Want More Power?
Upgrade to Pro for 70 calculators + PDF export + Elementor + AI, or Enterprise for the complete platform.
Live Free Calculator Demo
Real Fitness Calculators
Powered by the shared FitNFO Core Engine. Free includes calculators 1 to 30.
BMI Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="bmi-calculator"]BMR Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="bmr-calculator"]TDEE Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="tdee-calculator"]Calorie Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="calorie-calculator"]Body Fat Percentage Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="body-fat-percentage-calculator"]Ideal Weight Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="ideal-weight-calculator"]Macro Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="macro-calculator"]Protein Intake Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="protein-intake-calculator"]Water Intake Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="water-intake-calculator"]Calorie Burn Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="calorie-burn-calculator"]Heart Rate Zone Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="heart-rate-zone-calculator"]Target Heart Rate Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="target-heart-rate-calculator"]One Rep Max Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="one-rep-max-calculator"]Lean Body Mass Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="lean-body-mass-calculator"]Waist-to-Hip Ratio Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="waist-to-hip-ratio-calculator"]Waist-to-Height Ratio Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="waist-to-height-ratio-calculator"]Body Surface Area Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="body-surface-area-calculator"]Calories Burned Running Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="calories-burned-running-calculator"]Calories Burned Walking Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="calories-burned-walking-calculator"]Steps to Calories Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="steps-to-calories-calculator"]Pace Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="pace-calculator"]VO2 Max Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="vo2-max-calculator"]Maintenance Calorie Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="maintenance-calorie-calculator"]Weight Loss Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="weight-loss-calculator"]Weight Gain Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="weight-gain-calculator"]Pregnancy Weight Gain Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="pregnancy-weight-gain-calculator"]Daily Carb Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="daily-carb-calculator"]Sugar Intake Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="sugar-intake-calculator"]Body Frame Size Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="body-frame-size-calculator"]Fitness Age Calculator
Instant client-side calculation with proper inputs.
[fitnfo_calculator type="fitness-age-calculator"]Educational estimates only. Not medical advice.
Explore FitNFO
Demo Hub | Free Version | Pro Version | Enterprise Version | Pricing | Documentation
n
n