Whether you need to calculate percentages, fractions, loans, or BMI, these free online calculators give you instant, accurate results. All tools work in your browser.
Free online percentage calculator — calculate percentage increase, decrease, difference, percentage of a number, and reverse percentage. Fast, accurate, easy-to-use tool for daily math and finance.
Perform advanced scientific calculations with trigonometry, logs, and exponents. Free online scientific calculator for math.
Calculate monthly payments for personal or auto loans. See total interest paid and a full amortization schedule. Free online, no upload.
Add, subtract, multiply, and divide fractions with step-by-step results. Free online fraction calculator for math and cooking.
Free online BMI calculator — calculate your Body Mass Index instantly. Supports metric and imperial units, BMI category chart, healthy weight range, and personalized tips. No signup required.
Free online age calculator — calculate exact age in years, months, weeks, days, hours, and minutes. Find your next birthday countdown and calculate age on any past or future date.
Calculate tips and split bills between multiple people instantly. Free online tip calculator for restaurant bills and groups.
Calculate percentage increase or decrease between two values. Free online percentage change calculator for finance and growth.
Calculate the mean, median, mode, and range of numbers instantly. Free online average calculator for statistics and data.
Calculate ratios, proportions, and scale factors for numbers. Free online ratio calculator for recipes, finance, and engineering.
Yes. They use standard, well-documented formulas (BMI, loan amortization, percentage change, and more) with full precision.
No. Every calculator works instantly with no signup required.
Yes. All calculators are mobile-friendly with touch targets sized for phones.
When choosing a tool, consider your specific needs: file size limits, processing speed, privacy guarantees, and batch processing capabilities. All recommended tools have been tested by our team.