Free Online Calculators — Math, Finance & Life Calculators
28 free calculators. No signup required.
All Calculators Tools
AdSense Calculator
Estimate AdSense earnings from page views, RPM, and CTR. Niche presets, 12-month projection, and goal planner. Free, in your browser. Plan right up to payout.
Age Calculator
Calculate exact age in years, months, weeks, days, and seconds. Live counter, birthday countdown, zodiac, and birthstone. Free, no sign-up. Share milestones.
BMI Calculator
Check BMI by age and gender with ideal-weight range, BMI Prime and waist-to-height ratio. Metric and imperial support, private and instant. All ages covered.
Break-Even Analysis Calculator
Calculate your break-even point, contribution margin, and profit at any sales volume. Compare pricing scenarios and visualize your cost-revenue structure.
Burn Rate Calculator
Calculate startup gross burn, net burn and cash runway from cash, revenue and expenses with break-even, funding needs and 12-month projection. Save runway fast.
CAC Calculator
Calculate customer acquisition cost, payback period, and LTV:CAC ratio. Channel breakdown and benchmarks included. Free, no sign-up. Channel benchmarks inside.
Calculator
Fast free standard calculator for everyday math with keyboard support, instant addition, subtraction, multiplication, division and copy-ready results.
Compound Calculator
Calculate compound interest growth with monthly contributions. Year-by-year table, milestones, and What-If scenarios. Free, no sign-up. Watch interest snowball.
Credit Utilization Calculator
Calculate credit utilization ratio from balances and limits with 30% rule guidance, paydown targets, score impact tips and instant clear results. Free forever.
Date Calculator
Add or subtract days, weeks, months, or years from any date. Find durations, deadlines, and anniversaries instantly. Free, no sign-up. Business days supported.
Debt Calculator
Compare snowball and avalanche debt payoff methods. See payoff dates, interest saved, and monthly plans. Free, runs in-browser. Become debt-free years sooner.
E-Way Bill Calculator
Check e-Way Bill requirement and validity by distance. State pair analysis, expiry dates, extensions, and penalties. Free, no sign-up. 2026 rules built in.
EMI Calculator
Calculate monthly loan EMI, total interest, and total payment. Compare tenures and rates with amortization table. Free, no sign-up. Extra payments modeled too.
FD Calculator
Calculate fixed deposit maturity and total interest. Compare compounding rates, TDS, inflation impact, and goals. Free, no sign-up. Senior rates covered.
Fuel Cost Calculator
Estimate fuel cost per km, trip petrol or diesel expense, mileage and monthly budget for bikes and cars. Split costs and compare with cab fares. Split fares.
GST Calculator
Calculate Goods and Services Tax for products and services. Inclusive or exclusive pricing with CGST, SGST, IGST split. Free tool. All slabs 0-28 covered.
Instagram Calculator
Calculate Instagram engagement, reach, earnings per post, and posting frequency. Growth projections included. Free, no sign-up. Fake followers flagged.
Loan Affordability Calculator
Find how much loan you can afford from income and monthly debts. Safe borrowing range with payment estimates. Free, no sign-up. Shop homes within your budget.
Mortgage Overpayment Calculator
See interest saved and years cut with extra mortgage payments. Monthly, yearly, or lump sums with schedule. Free, no sign-up. Extra monthly or lump sums work.
Mrr Calculator
Calculate Monthly Recurring Revenue, ARR, churn impact, and customer LTV for SaaS and subscriptions. With growth chart. Free tool. Churn and expansion tracked.
Percentage Calculator
Calculate percentages, increases, decreases, tips, and fractions instantly. Clear formulas with step results. Free, no sign-up needed. Marks mode for students.
Profit Margin Calculator
Calculate gross profit, margin, markup, and selling price from cost and revenue. Built for retail and e-commerce. Free, no sign-up. VAT-ready outputs included.
Retirement Planning Calculator
Plan your retirement by modeling accumulation and drawdown phases, comparing strategies, adding Social Security, and adjusting for inflation. Retire confident.
SIP Calculator
Calculate mutual fund SIP growth, invested total and maturity value with expected returns, step-up, inflation adjustment and year-wise projections. Free.
Salary Calculator
Convert hourly wage to weekly, monthly, and annual salary. Compare offers, estimate taxes, and plan raises. Free, supports 16 currencies. Overtime modeled too.
Savings Account Comparison Calculator
Advanced multi-currency savings comparison with APY, fees, monthly contributions, contribution escalation, tax impact, inflation-adjusted returns, goal
Scientific Calculator
Solve advanced math online: trig, logs, powers, roots, and memory functions with history. Keyboard friendly. Free, no sign-up. Constants and history built in.
Youtube Calculator
Estimate YouTube channel earnings from views, RPM, and CPM. Project revenue, sponsorships, and growth. Free for creators, no sign-up. Sponsorships counted too.
Calculators — check the math before you sign
Finance calculators here show full amortization, fee and tax inputs — not just a monthly number. EMI, SIP, FD, GST and mortgage views expose formulas, prepayment effects and effective rates so you can reproduce every figure. Figures are educational estimates; confirm with your bank or adviser.
Compare EMI vs SIP vs FD with the dedicated guide, then re-run with your own rate, tenure and fees. Every result can be copied or exported for your records.