Finance & Budgeting
Mortgage payment, compound interest, SIP returns, retirement planner, paycheck calculator, debt payoff snowball, budget planner, ROI and break-even, discount and profit margin, rent vs buy.
Free Online Calculators & Tools
Finance calculators, health and fitness tools, and everyday utilities—mortgage, BMI, BMR, SIP, retirement, debt payoff, GPA, tip split, and more. Everything runs in your browser. No signup, no data stored.
Browse All ToolsTool Categories
Choose a category to find the right calculator or utility for you.
Health & Fitness
BMI, BMR and TDEE, body fat percentage, daily calorie intake, water intake, sleep cycle calculator, ideal body weight, pregnancy due date, ovulation and fertility.
Education & Everyday
Age on planets and days alive, clothing size conversion, grade and GPA calculator, reading and typing speed, tip and bill split.
Popular Calculators & Tools
Quick access to mortgage, BMI, SIP, retirement, debt payoff, GPA, and other free online calculators.
Mortgage Payment Calculator
Estimate monthly home loan payments with principal, interest, taxes, and insurance.
Compound Interest Calculator
Project savings or investment growth with compound interest over time.
Investment / SIP Returns Calculator
Calculate the future value of monthly investments (SIP) with expected returns.
Retirement Savings Planner
Estimate how much you need to save to reach your retirement goal.
BMI Calculator
Calculate your Body Mass Index from height and weight to assess weight category.
BMR / TDEE Calculator
Estimate your Basal Metabolic Rate and Total Daily Energy Expenditure (daily calorie needs).
Body Fat Percentage Calculator
Estimate body fat percentage using the US Navy method (measurements).
Daily Calorie Intake Calculator
Get personalized daily calorie targets for maintenance, loss, or gain.
Age on Planets / Days Alive Calculator
See your age in days and your age on Mercury, Venus, Mars, and other planets.
Clothing Size Conversion Calculator
Convert between US, UK, and EU clothing and shoe sizes.
Grade / GPA Calculator
Calculate your GPA from letter grades and credits, or find the grade you need.
Reading / Typing Speed Calculator
Calculate words per minute (WPM) or estimate time to read or type text.
About Uzi Tools
Uzi Tools is a collection of free online calculators and tools for finance, health, and everyday use. Every tool runs entirely in your browser on your device. We don't store your data, require signup, or send your inputs to any server. You get instant results with full privacy—ideal for quick estimates, planning, and decision-making without leaving your browser.
Our finance calculators cover mortgages, compound interest, SIP and investment returns, retirement savings, paycheck and net salary, debt payoff (snowball and avalanche), personal budget planning, ROI and break-even, discount and profit margin, and rent vs buy affordability. Use them to compare scenarios, plan savings, or estimate payments. For exact figures or tax advice, always consult a qualified professional.
Our health and fitness tools include BMI, BMR and TDEE (daily calorie needs), body fat percentage (Navy method), daily calorie intake for maintenance or weight change, water intake, sleep cycle timing for better rest, ideal body weight (Devine formula), pregnancy due date, and ovulation and fertility window estimation. These are for education and planning only—for health goals or medical questions, consult a healthcare provider.
Our education and everyday tools include age on planets and days alive, clothing and shoe size conversion (US, UK, EU), grade and GPA calculator, reading and typing speed (WPM), and tip and bill split for restaurants. All processing happens in your browser—no data is stored or transmitted.
We're committed to keeping these tools free, private, and easy to use. You can browse all tools on our tools page. If you have ideas for new calculators or feedback, we'd love to hear from you.