Free Math & Finance
Calculate percentages, discounts, BMI, interest, and more online for free.
No cost, no ads, no signup required.
Tip Calculator
Calculate tips and split bills easily. Determine gratuity amounts and per-person costs with customizable tip percentages.
Percentage Calculator
Calculate percentages, find what percent one number is of another, and compute percentage changes.
Discount Calculator
Calculate sale prices, discount amounts, and savings. Find the final price after any percentage off.
BMI Calculator
Calculate your Body Mass Index (BMI) and find your healthy weight range based on height and weight.
Compound Interest Calculator
Calculate compound interest growth on investments and savings. See how your money grows over time.
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PDF Tools
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Convert, merge, split, and edit PDF files online for free
Image Tools
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Convert, resize, and optimize images online for free
Video & Audio Tools
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Compress, trim, and convert video and audio files online for free
QR & Barcode Tools
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Generate QR codes and barcodes for free online
Text Tools
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Essential utilities for writers, bloggers, and content creators
Age Calculators
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Calculate ages, date differences, and Korean age online for free
Music Tools
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Free online music tools for guitarists, musicians, and producers
Time & Date Tools
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Convert time zones, calculate date differences, and manage time online for free
Security & Hashing
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Generate secure passwords, hash text, and encrypt data online for free
Unit Converters
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Convert between units of length, weight, temperature, and more online for free
Color Tools
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Pick colors from images, generate palettes, and check contrast online for free
Random Generators
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Generate random numbers, names, colors, dice rolls, and more online for free
List & Data Tools
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Sort, shuffle, deduplicate, and manipulate lists and data online for free