Free Online Calculators
From EMIs and SIPs to income tax in India and Canada, this collection covers the money maths people actually sit down to do: loan payments, compound growth, GST, in-hand salary, FIRE numbers and full amortization schedules. Every calculator runs instantly in your browser, shows its working line by line, and never asks you to sign up or hand over an email address before you see the answer.
There are health and everyday calculators here too — BMI, TDEE and macros, sleep cycles, pregnancy due dates, running pace, tip splitting and date differences. Each one is built on the standard published formulas and laid out so you can see exactly how a result was reached, not just a bare number. If a slab rate or a percentage matters, we show it.
Because everything is client-side, nothing you type is uploaded or stored — your salary, loan details and health inputs stay on your device. Use these for quick estimates, for planning a conversation with your bank or advisor, or for settling an argument about percentages. They work just as well on a phone mid-negotiation as on a desktop next to a spreadsheet.
EMI Calculator — Home, Car & Personal Loan
EMI calculator for home, car and personal loans: get monthly EMI, total interest and total repayment instantly with adjustable sliders.
SIP Calculator — Mutual Fund Return Estimator
SIP calculator projecting the future value of monthly SIP or lumpsum mutual fund investments — amount invested vs estimated gains, instantly.
Income Tax Calculator India FY 2025-26 — New vs Old
Calculate FY 2025-26 (AY 2026-27) income tax: new vs old regime side by side, ₹75,000 standard deduction, 87A nil tax up to ₹12 lakh, 4% cess included.
BMI Calculator
Calculate your Body Mass Index and see your healthy weight range.
FIRE Number & Coast-FIRE Calculator
Find your financial-independence number, your FI date, and your Coast-FIRE milestone — with a chart.
Age Calculator — How Old Am I Exactly?
Free age calculator: exact age in years, months and days on any date, plus total days lived and a countdown to your next birthday.
Sleep Cycle Calculator
Find the best times to sleep or wake based on 90-minute sleep cycles.
CTC to In-Hand Salary Calculator (India)
Convert annual CTC to monthly in-hand salary — new regime FY 2025-26 tax, PF & gratuity deductions. Instant, accurate estimate.
Pregnancy Due Date Calculator
Estimate your due date and see week-by-week milestones.
Old vs New Tax Regime Calculator (India)
Enter your income and deductions once and see your tax under both Indian regimes side-by-side — with the cheaper one highlighted and the rupee saving.
FD / RD Calculator
Calculate maturity value and interest for fixed and recurring deposits.
Income Tax Calculator (Canada)
Estimate your federal + provincial income tax and take-home pay in Canada.
Compound Interest Calculator
Find maturity amount & interest earned with yearly, half-yearly, quarterly or monthly compounding — instant compound interest results.
Tip & Bill Splitter
Split any bill with tip across friends — rounding and per-person totals made easy.
Outsourcing ROI Calculator
Estimate how much a 24/7 follow-the-sun dev team could save you per year.
Loan Payoff Accelerator
See your full amortization schedule — and how much extra monthly payments save you.
Percentage Calculator
Every common percentage calculation in one simple tool.
Date Difference Calculator
Find the number of days, weeks and months between two dates.
One-Rep Max Calculator
Estimate your 1RM from any lift and see your full percentage table.
Rent vs Buy Calculator
See whether renting or buying wins over time — with a break-even chart.
CGPA ↔ Percentage Calculator
Convert CGPA to percentage and back (common university scales).
Running Pace & Race Predictor
Convert pace ↔ time ↔ distance and predict your race times.
Discount Calculator
Find the sale price and exactly how much you save — with stackable extra discounts.
Net Worth & Savings-Rate Tracker
Add your assets and debts to see your net worth and savings rate — saved on your device.
GST Calculator India — Add or Remove GST
GST calculator for India's 5% & 18% slabs (plus 0%, 3%, 12%, 28%): add GST to a price or extract it from an MRP with instant CGST/SGST split.
TDEE & Macro Calculator
Find your daily calories and ideal macro split for your goal — with a clear breakdown.
Unit Price Comparison
Compare price per 100g, per litre or per item to find which product is actually the cheapest. Instant, exact best-buy maths right at the shelf.
Calculators — frequently asked questions
Yes — all of them, with no sign-up, no watermarks and no usage limits. They are part of the 280+ free tools we build and give away; the site is supported by unobtrusive ads, never by paywalls.
They use the standard published formulas (reducing-balance EMI, compound interest, current tax slabs) and show the full breakdown so you can verify every figure. Treat results as reliable planning estimates and confirm large decisions with your bank or a professional.
No. Every calculator runs entirely in your browser — nothing you type is sent to our servers, logged or stored, so your income, loan and health details never leave your device.
The India calculator follows the current new-regime slabs and the Canada calculators use current federal and provincial brackets with CPP and EI. We update them as rules change, but always cross-check against official government sources at filing time.
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