Pure, Simple, Universal Units

Access 100+ free online calculators and converters. Fast, private, and works entirely in your browser.

Popular Tools

Finance

VAT Calculator

Calculate VAT amounts globally with support for multiple countries.

Finance

Loan Calculator

Calculate monthly payments, total interest, and amortization schedules.

Health & Fitness

BMI Calculator

Calculate your Body Mass Index and understand your health status.

Health & Fitness

TDEE Calculator

Calculate your Total Daily Energy Expenditure for diet planning.

DevTools

JSON Formatter

Format, validate, and beautify your JSON data instantly.

DevTools

Base64 Encoder

Encode and decode Base64 strings for data transmission.

Unit Converters

Length Converter

Convert between meters, feet, inches, kilometers, and miles.

Unit Converters

Temperature Converter

Convert between Celsius, Fahrenheit, and Kelvin instantly.

Finance

ROI Calculator

Calculate return on investment for your business decisions.

Marketing

UTM Link Builder

Create trackable campaign URLs with UTM parameters.

Text & Content

Word Counter

Count words, characters, and estimate reading time instantly.

Math & Education

Percentage Calculator

Calculate percentages, increases, and decreases easily.

Free Online Tools

Access our comprehensive suite of free online calculators and converters. All tools run entirely in your browser with zero server processing, ensuring maximum speed and privacy.

How to Use Our Tools

1Select a tool from the sidebar navigation or use the search bar to find what you need.
2Enter your values into the input fields. All calculations happen instantly in your browser.
3View your results immediately. Copy, share, or save them as needed.
4All tools are free to use with no registration required. Your data never leaves your device.

Frequently Asked Questions

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