Calculate Smarter. Live Better.
Free online calculators for money, business, health, study and everyday work. Type your numbers and see the answer, the formula and a worked example.
Pick up where you left off
Calculator Categories
Finance & Money
EMI, loan, SIP, FD and investment calculators to plan borrowing, saving and retirement with clear, step-by-step results.
10 calculatorsBusiness & GST
GST, profit, margin, markup and break-even calculators for shop owners, traders and freelancers, with Indian GST rates built in.
10 calculatorsHealth & Fitness
BMI, BMR, calorie, macro and water intake calculators for general wellness planning. Educational use only, not medical advice.
10 calculatorsMath
Percentage, fraction, average, ratio and scientific calculators plus age, date and grade tools for school, work and daily life.
10 calculatorsEveryday
Bill splitting, tip, fuel cost, electricity bill and unit conversion tools for the small calculations you do every week.
10 calculatorsEducation
CGPA, percentage, attendance, weighted average and exam score calculators that help students track and plan their results.
10 calculatorsConstruction
Cement, sand, concrete, brick, paint, tile and roofing estimators with clear wastage assumptions for home builders and contractors.
10 calculatorsEcommerce
Seller profit, shipping, marketplace fee, ROAS, ROI and commission calculators for online sellers on Amazon, Flipkart and their own stores.
10 calculatorsDate & Time
Date, countdown, working day, business day and time zone calculators plus a Unix timestamp converter.
10 calculatorsTechnology & Digital Tools
Download time, file size, data storage and binary converters, plus a password strength checker and word and character counters.
10 calculatorsWhy Calclytics?
Formulas shown
Every calculator explains its formula and works through an example, so you can check the answer yourself.
Private by design
Your numbers stay in your browser. Nothing you type is sent to a server.
Built for India and the world
INR with lakh and crore formatting, current Indian GST slabs, and tools that work anywhere.
Fast on any device
Light pages, dark mode, keyboard shortcuts, and a layout that works on small phones.
Frequently Asked Questions
Are Calclytics calculators free?
Yes. Every calculator is free to use, with no sign-up and no account.
Are the results exact?
Calculators apply standard formulas to the numbers you enter. Real-world outcomes such as bank charges, taxes or market returns can differ, so treat results as estimates.
Do you store the numbers I enter?
No. Calculations run in your browser. Calclytics does not send your inputs to a server.
Can I use the health calculators for medical decisions?
No. They are educational tools and not a diagnosis. Speak to a qualified professional about your health.
Can I share my result?
Yes. The Share button creates a link that opens the calculator with your numbers filled in.