Free Online Calculators for Every Need

Comprehensive collection of financial, health, fitness, math, and everyday life calculators. Accurate, easy-to-use tools to help with your calculations.

Fitness & Health Calculators

Body Fat Calculator

Use our Body Fat Calculator to quickly estimate your body fat percentage based on your height, weight, age, and gender. Fast and accurate results.

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TDEE Calculator

Find out how many calories you burn daily with our TDEE Calculator. Perfect for setting weight loss or muscle gain goals based on your activity level.

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Weight Loss Calculator

Calculate how much weight you can lose by a specific date. This Weight Loss Calculator helps you plan, set goals, and stay motivated.

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Macro Calculator

Calculate your Basal Metabolic Rate - calories burned at complete rest.

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Calorie Deficit Calculator

Calculate the calorie deficit you need to lose weight. Our tool gives you daily target calories, weight loss timeline, and healthy goal suggestions.

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BMR Calculator

Calculate your BMR to find how many calories your body burns at rest. Use it for weight loss, gain, or maintenance.

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Walking, Running & Treadmill Calorie Calculator

Estimate calories burned while walking, running, or using a treadmill. Supports pace, time, distance, and weight-based calculations with real-time output.

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Calories Burned Calculator

Calculate how many calories you burn during any activity — from gym workouts to daily tasks. Customizable by weight, duration, and intensity.

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Daily Water Intake Calculator

Find out how much water you should drink daily based on your weight, activity level, and climate. Stay hydrated with science-based recommendations.

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Calorie Calculator

Discover how many calories your body needs daily to maintain, lose, or gain weight. Based on your age, gender, height, weight, and activity level.

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BMI Calculator (Body Mass Index)

Quickly check your Body Mass Index (BMI) and know whether you’re underweight, healthy, overweight, or obese using height and weight inputs.

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Body Fat Percentage Calculator

Measure your body fat percentage using simple data like height and weight.

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Weight Loss Percentage Calculator

Find out what percentage of your body weight you've lost.

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Weight Loss Calculator with Date

Calculate how many calories to eat daily to hit your goal weight by a target date.

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Walking Weight Loss Calculator

Estimate calories burned and weight loss from walking based on speed and time.

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TDEE Calculator for Weight Loss

Find your Total Daily Energy Expenditure and set fat-loss goals.

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Protein Calculator for Weight Loss

Determine your daily protein intake for fat loss and muscle retention.

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Macro Calculator for Weight Loss

Customize your daily carbs, protein, and fat ratio for effective weight loss.

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Weight Loss Calorie Calculator

Calculate how many calories you need to eat to lose weight steadily.

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Welcome to Ozirat – Your Ultimate Weight Loss & Fitness Calculator Hub

At Ozirat.com, we make your health and weight loss journey smarter with easy-to-use, science-based tools. Whether you're trying to lose weight, track your calories, calculate your macros, or simply understand your body better—our collection of free calculators is built to support your goals with accuracy and simplicity.

We understand that every body is unique. That’s why we offer a variety of fitness and nutrition calculators tailored to your needs. From daily calorie intake to TDEE, BMR, BMI, macro breakdowns, and water requirements – everything you need is here in one place.

Why Use Our Tools?

  • Accurate & Data-Backed: All our calculators are based on proven formulas and up-to-date health guidelines.

  • Completely Free: No sign-up, no hidden charges—just honest tools to support your wellness.

  • Beginner-Friendly: Simple interfaces designed for anyone, even if you're just starting your health journey.

  • Results You Can Use: Each tool gives you not just numbers, but explanations so you know what to do next.

Popular Calculators on Ozirat

Here are some of our most used tools:

Built for Real People with Real Goals

Whether you're preparing for a fitness challenge, getting back into shape, or just trying to be healthier, our tools are built with real-life application in mind. You don't need to be a fitness expert—just input your info, and get instant, meaningful results.

Stay Informed

We are continuously updating Ozirat with new calculators, articles, and tips to support your journey. Check back often or bookmark your favorite tools.


Start your transformation today.
Explore our full list of tools and take control of your health—one calculation at a time.