Complete Fitness Platform
130 calculators with AI, nutrition, progress and directory-ready workflows.
$140/month or $299 Lifetime
Choose monthly access or lifetime value for agencies, gyms and trainers.
AI + Directory + Member Growth
Build a full fitness intelligence website with premium WordPress tooling.
130 Fitness Calculators.
One Powerful Plugin.
BMI, TDEE, Macros, Keto, Intermittent Fasting, AI Body Analysis, Meal Plans, Progress Tracking — the most complete fitness calculator suite ever built for WordPress.
Everything Your Fitness Site Needs
From basic BMI to advanced AI-powered body analysis — one plugin, zero compromises.
130 Calculators
BMI, BMR, TDEE, Macros, Keto, Intermittent Fasting, 1RM, VO2 Max — every fitness metric covered with real, accurate formulas.
AI Body Analyzer
Upload a photo, get an AI-powered body composition estimate and personalized goal plan. Uses your own OpenAI or Anthropic key.
AI Meal Plans
Generate personalized meal plans based on calorie targets, diet preferences, and food allergies — powered by AI.
Progress Tracking
Members log weight and measurements over time. Beautiful trend charts show progress toward their goals.
Gutenberg + Elementor
Native Gutenberg block and Elementor widget. Works with any WordPress theme or page builder via shortcode.
Metric + Imperial
Every calculator supports both kg/cm and lb/ft. Toggle instantly. Works for audiences worldwide.
See It In Action
Live calculators — no sign-up, no install. Just try it right now.
FitNFO Free — Live 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"]Simple, Honest Pricing
Start free. Upgrade when you need more power. No tricks, no forced renewals.
- ✓ 30 Fitness Calculators
- ✓ Gutenberg Block
- ✓ Shortcode Support
- ✓ Metric + Imperial
- — PDF Export
- — Elementor Widget
- — AI Features
- ✓ 70 Fitness Calculators
- ✓ PDF + Print Export
- ✓ Elementor Widget
- ✓ AI Body Analyzer (limited)
- ✓ AI Meal Plans (limited)
- ✓ Dark Mode
- — Progress Tracking
- ✓ 130 Fitness Calculators
- ✓ Unlimited AI Features
- ✓ Progress Tracking + Charts
- ✓ Membership System
- ✓ Trainer + Gym Directory
- ✓ White-Label Branding
- ✓ Priority Support
Body Analysis + Meal Plans Powered by AI
Upload a photo, get an intelligent estimate of your body composition and a personalized plan to reach your goals — safely and responsibly.
- Photo-based body composition estimate (range, not exact)
- Safe calorie deficit/surplus with hard floor limits
- Personalized meal plan by diet preference
- Works with OpenAI (GPT-4o) and Anthropic (Claude)
- Auto-failover between providers
- Bring Your Own API Key — you control costs
Loved by Fitness Professionals
Join developers and fitness coaches using FitNFO on their sites.
“Finally a fitness calculator plugin that actually works. The AI analyzer is a game-changer for my personal training clients. Installation was straightforward and calculators work perfectly.”
“I tried 4 other calculator plugins before finding FitNFO. The Elementor integration is seamless and having 70+ calculators in Pro makes it worth every penny. My clients love it.”
“The progress tracking feature transformed my fitness blog into a real platform. Users come back daily to log their metrics. Enterprise plan is absolutely worth the investment.”
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Start Free. Scale When Ready.
Download 30 free calculators today. Upgrade to Pro or Enterprise when your site grows.
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