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Free Online Calculators for Every Need

258+ free calculators for finance, health, math, conversions, and more. Fast, accurate, and easy to use — no signup required.

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Most Popular Calculators

Our most-used calculators trusted by millions of users worldwide.

Mortgage Calculator

Calculate your monthly mortgage payments, total interest, and amortization schedule.

Loan Calculator

Calculate monthly loan payments, total interest, and payoff timeline for any loan type.

Compound Interest Calculator

Calculate how your money grows over time with compound interest and regular contributions.

Salary Calculator

Convert between hourly, weekly, biweekly, monthly, and annual salary amounts.

Currency Calculator

Convert between world currencies using up-to-date exchange rates.

BMI Calculator

Calculate your Body Mass Index to determine if your weight is in a healthy range.

Body Fat Calculator

Estimate your body fat percentage using body measurements and proven formulas.

Calorie Calculator

Calculate your daily calorie needs for weight loss, maintenance, or muscle gain.

TDEE Calculator

Calculate your Total Daily Energy Expenditure to understand your daily calorie burn.

BMR Calculator

Calculate your Basal Metabolic Rate to find how many calories your body burns at rest.

Scientific Calculator

Perform advanced mathematical calculations including trigonometry, logarithms, and exponents.

Fraction Calculator

Add, subtract, multiply, and divide fractions with step-by-step solutions.

Percentage Calculator

Calculate percentages, percentage changes, and percentage differences between values.

Standard Deviation Calculator

Calculate standard deviation, variance, and mean for a data set with step-by-step solution.

Age Calculator

Calculate your exact age in years, months, days, hours, and minutes from your birthdate.

Date Calculator

Add or subtract days, weeks, months, and years from any date to find a target date.

GPA Calculator

Calculate your grade point average from course grades and credit hours on a 4.0 scale.

Tip Calculator

Calculate the tip amount and split the bill evenly among any number of people.

Mortgage Amortization Calculator

View a detailed amortization schedule showing principal and interest breakdown for each payment.

Mortgage Payoff Calculator

Find out how quickly you can pay off your mortgage with extra payments and save on interest.

Why CalculatorGlobe?

258+ Free Calculators

Comprehensive tools for every calculation need

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Verified Formulas

Industry-standard calculations from authoritative sources

Mobile-Friendly Design

Works perfectly on any device or screen size

Updated for 2026

Current rates, formulas, and data you can trust

Frequently Asked Questions

Yes, every calculator on CalculatorGlobe is 100% free with no registration, subscriptions, or hidden fees. Simply visit the calculator page and start calculating instantly.

Our calculators use industry-standard formulas based on authoritative sources. Financial calculators follow standard amortization and compounding formulas, health calculators use medically recognized equations, and math tools implement peer-reviewed algorithms. We recommend consulting a professional for important financial or medical decisions.

No account or signup is required. All calculators are instantly accessible. We believe in removing barriers so you can get answers as quickly as possible.

Absolutely. Every calculator is designed mobile-first with responsive layouts, large touch targets, and optimized performance. They work seamlessly on smartphones, tablets, and desktop computers across all modern browsers.

We continuously update our calculators to reflect current rates, formulas, and best practices. Financial calculators are reviewed annually for rate accuracy, health calculators follow the latest medical guidelines, and all tools undergo regular quality checks.