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🧮 44 free calculators

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.

44 tools

EMI Calculator — Home, Car & Personal Loan EMI calculator for home, car and personal loans: get monthly EMI, total interest and total repayment instantly... SIP Calculator — Mutual Fund Return Estimator SIP calculator projecting the future value of monthly SIP or lumpsum mutual fund investments — amount invested... 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... 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... Income Tax Calculator (Canada) Estimate your federal + provincial income tax and take-home pay in Canada. 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 MR... Sleep Cycle Calculator Find the best times to sleep or wake based on 90-minute sleep cycles. FD / RD Calculator Calculate maturity value and interest for fixed and recurring deposits. Loan Payoff Accelerator See your full amortization schedule — and how much extra monthly payments save you. Outsourcing ROI Calculator Estimate how much a 24/7 follow-the-sun dev team could save you per year. Rent vs Buy Calculator See whether renting or buying wins over time — with a break-even chart. Tip & Bill Splitter Split any bill with tip across friends — rounding and per-person totals made easy. TFSA Contribution Room Calculator (Canada 2026) Calculate your 2026 TFSA contribution room in seconds — immigrant-aware: room accrues from your year of Canadi... Compound Interest Calculator Find maturity amount & interest earned with yearly, half-yearly, quarterly or monthly compounding — instant co... Percentage Calculator Every common percentage calculation in one simple tool. Discount Calculator Find the sale price and exactly how much you save — with stackable extra discounts. Running Pace & Race Predictor Convert pace ↔ time ↔ distance and predict your race times. Mortgage Calculator (Canada & US) Calculate Canadian or US mortgage payments with correct compounding — get monthly payment, total interest, tot... Date Difference Calculator Find the number of days, weeks and months between two dates. Pregnancy Due Date Calculator Estimate your due date and see week-by-week milestones. 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, a... RRSP Tax Refund Calculator (Canada 2026) Estimate your 2026 RRSP tax refund by province. Enter income and contribution to see your refund, marginal rat... CGPA ↔ Percentage Calculator Convert CGPA to percentage and back (common university scales). Tip & Bill Split Calculator Instantly calculate tip and split any restaurant bill — enter amount, tip %, and party size to see your tip, g... Unit Price Comparison Compare price per 100g, per litre or per item to find which product is actually the cheapest. Instant, exact b... One-Rep Max Calculator Estimate your 1RM from any lift and see your full percentage table. 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 cheap... Profit Margin Calculator Calculate profit, margin %, and markup % instantly — enter any two of cost, price, or margin % to derive the t... Canada Sales Tax Calculator (GST/HST/PST) Calculate Canadian sales tax for any province or territory — add GST/HST/PST/QST to a price or extract tax fro... HRA Exemption Calculator (India) Calculate your HRA tax exemption in India — enter basic salary, HRA received, and rent paid to instantly find... Fuel Cost & Trip Calculator Calculate fuel litres needed, total trip cost, and cost per person from distance, mileage, and fuel price per... Net Worth & Savings-Rate Tracker Add your assets and debts to see your net worth and savings rate — saved on your device. TDEE & Macro Calculator Find your daily calories and ideal macro split for your goal — with a clear breakdown. Aspect Ratio Calculator Calculate scaled dimensions while preserving aspect ratio — enter original size, pick a preset (16:9, 4:3, 1:1... Break-Even Point Calculator Calculate your break-even point instantly — enter fixed costs, selling price, and variable cost to get contrib... PPF Calculator – 15-Year Maturity & Interest Free PPF calculator: project your 15-year maturity at the current 7.1% rate with a year-wise interest table, p... Inflation Calculator Calculate how inflation erodes money over time — enter an amount, annual rate, and years to see the future equ... BMR & Daily Calorie Calculator Calculate your Basal Metabolic Rate using the Mifflin-St Jeor formula and instantly see daily calorie targets... Running Pace Calculator Calculate running pace, time, or distance — shows pace in min/km and min/mi, speed in km/h, and predicted fini... Electricity Bill Calculator — Units & Cost Estimate monthly electricity bills by entering units consumed and rate per kWh, or build an appliance list wit... Retirement Savings Calculator Calculate your retirement corpus with compound monthly growth — instantly see final balance, total contributed... Gratuity Calculator (India) Calculate your gratuity payout under India's Payment of Gratuity Act — enter basic+DA salary and years served...

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.

Questions

Are these calculators really free to use?
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.
How accurate are the financial calculators?
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.
Is my salary or health data stored anywhere?
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.
Do the tax calculators stay up to date?
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.