FitNFO Lite

FitNFO Lite adds 30 professional fitness and nutrition calculators to your WordPress site. Every result is computed instantly via a lightweight AJAX call to your own site — no API key, no subscription, and no third-party service required.

Drop the calculator directory onto any page with a single shortcode, or embed an individual calculator anywhere shortcodes are supported.

30 Calculators Included

BMI Calculator, BMR Calculator, TDEE Calculator, Calorie Calculator, Body Fat Percentage Calculator, Ideal Weight Calculator, Macro Calculator, Protein Intake Calculator, Water Intake Calculator, Calorie Burn Calculator, Heart Rate Zone Calculator, Target Heart Rate Calculator, One Rep Max (1RM) Calculator, Lean Body Mass Calculator, Waist-to-Hip Ratio Calculator, Waist-to-Height Ratio Calculator, Body Surface Area Calculator, Calories Burned Running Calculator, Calories Burned Walking Calculator, Steps to Calories Calculator, Pace Calculator, VO2 Max Calculator, Maintenance Calorie Calculator, Weight Loss Calculator, Weight Gain Calculator, Pregnancy Weight Gain Calculator, Daily Carb Calculator, Sugar Intake Calculator, Body Frame Size Calculator, and Fitness Age Calculator.

Key Features

• 30 working calculators — real formulas, instant results
• Calculator Explorer — an interactive admin tool to preview any calculator with a live chart before you publish it
• Searchable directory — a built-in search box filters the calculator hub as you type
• Single-calculator shortcode — embed any calculator on its own
• Calculator Manager — turn individual calculators on or off from the admin
• Auto hub page — create a ready-made calculator page with one click
• Page builder friendly — works with Gutenberg, Elementor, WPBakery, Divi, Bricks, Oxygen and the Classic Editor via shortcodes
• Metric / Imperial toggle — visitors can switch kg ↔ lb and cm ↔ ft/in on the fly
• Mobile responsive — adapts cleanly across phone, tablet and desktop
• RTL ready — automatic right-to-left layout for Arabic and Urdu