Category

Health & Fitness Calculators

Free health and fitness calculators — BMI, body fat, TDEE, macros, heart rate zones, pregnancy tracking, and more.

Free BMI Calculator
Free BMI calculator. Enter your height and weight in metric or imperial units to get your Body Mass Index and see which BMI category you fall into.
Body Fat Calculator - Navy Method
Free body fat calculator using the U.S. Navy method. Estimate your body fat percentage from circumference measurements of your neck, waist, and hips with metric or imperial units.
Calories Burned Calculator
Free calories burned calculator. Estimate calories burned for 100+ activities including running, walking, cycling, swimming, and household chores. Based on your weight and activity duration.
Dog Years Calculator
Convert your dog's age to human years using both the simple multiply-by-7 method and the scientifically accurate formula based on DNA methylation.
Heart Rate Zone Calculator
Calculate your 5 heart rate training zones based on your age or maximum heart rate.
Macro Calculator - Protein, Carbs & Fats
Free macro calculator. Calculate your daily protein, carbohydrate, and fat targets based on your calorie goals and preferred macro ratio for weight loss, maintenance, or muscle gain.
Maintenance Calories Calculator
Calculate your maintenance calories (TDEE) based on your age, height, weight, sex, and activity level.
Pregnancy Weeks Calculator
Calculate how many weeks pregnant you are and your due date from your last menstrual period (LMP).
Sleep Calculator - Optimal Bedtime & Wake Time
Free sleep calculator. Find your optimal bedtime or wake time based on 90-minute sleep cycles. Wake up refreshed by timing your alarm with your natural sleep rhythms.
TDEE Calculator - Total Daily Energy Expenditure
Free TDEE calculator. Calculate your Total Daily Energy Expenditure (daily calorie needs) based on age, gender, weight, height, and activity level using the Mifflin-St Jeor equation.

Track your health and fitness goals with our free calculators. Calculate your BMI, body fat percentage, daily calorie needs (TDEE), optimal macro ratios, heart rate training zones, pregnancy timeline, and more. All calculations run instantly in your browser with complete privacy — no data is sent to any server.

Super tools

Welcome to Super Tools! We're here to provide you with a collection of easy-to-use tools and utilities to help make your day-to-day tasks a little bit easier.

About Super Tools

Whether you need to quickly count the number of characters in a block of text, convert measurements from pixels to inches, or generate a catchy business name, you'll find what you need right here.

Our goal is to create a one-stop-shop for all your basic productivity needs. We've carefully curated a set of practical, user-friendly tools that are accessible to everyone. No complicated setups or confusing interfaces - just simple solutions to common problems.

Feel free to explore our growing suite of free tools and let us know if there's anything else we can do to help streamline your workflow. We're always happy to hear your feedback and suggestions.

Is Super Tools free?

Our suite of productivity tools is 100% free for anyone to use. We believe everyone should have access to helpful utilities that can save time and make life easier. Whether you're a student, freelancer, small business owner, or just someone looking to simplify certain tasks, you can take advantage of our free character counters, unit converters, name generators, and more without paying a dime. Our commitment to providing valuable, cost-free resources is central to our mission. You'll never encounter paywalls, subscriptions, or hidden fees on our site - just high-quality tools that you can use at no charge. Explore our growing collection of free online utilities today and discover how they can streamline your workflows and boost your productivity.

Looking for More Tools?

Discover curated tools at ToolForThis.com

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