Featured
- TVM Solver (PV/FV/PMT/NPER/RATE) — Loan & Investment.
Solve PV, FV, PMT, NPER, and RATE in one place for loans or investments.
- Bond Price ↔ Yield (YTM) Calculator.
Compute bond price and yield to maturity (YTM) from coupon, maturity, and price or yield.
- Loan calculator (monthly payment, interest, payoff).
Calculate monthly loan payment, total interest, and payoff timeline from principal, APR, and term.
- Mortgage repayment planner – monthly payments, lump sums.
Simulate mortgage repayments with equal payment or equal principal methods, include bonus payments, lump-sum.
- Compound Interest Calculator.
Estimate future value and Effective Annual Rate from APR, compounding frequency, years, and optional monthly.
- Discount calculator – stacked percentage, amount.
Enter a list price and stack percentage cuts, fixed-amount deals and coupons to see final price and savings.
How to use this category
A hub for quick number checks: loans, taxes, savings, and simple comparisons.
Start with your goal (monthly payment, total interest, net↔gross tax) to pick the right calculator.
How to choose (3 steps)
- Pick your goal (payment, interest, tax, etc.).
- Prepare inputs (amount, rate, term, tax rate).
- Compare scenarios by changing one input at a time.
Common goals
- Estimate monthly loan payments and total interest
- Compare refinance scenarios
- Convert net↔gross prices with VAT/tax
Input examples
Example: 300,000 for 30 years at 4%
Principal 300,000, term 30 years, APR 4%
Monthly payment, total interest, amortization schedule
Example: net 100 at 10% tax
Net 100, tax 10%
Gross total, tax amount, net↔gross toggle
Finance & money
- Retirement Savings Calculator.
Project your retirement nest egg by combining current savings, recurring monthly contributions, investment growth.
- Fuel Economy, Gas Cost and Trip Cost Calculator.
Estimate your real-world fuel economy, gas cost for a drive, and total trip cost including tolls and parking.
- Biweekly loan amortization schedule (CSV export).
Compute a biweekly amortization schedule (26 payments/year), include extra payments, and export the table to CSV.
- Bond Duration / DV01 / Convexity Calculator.
Calculate Macaulay duration, modified duration, DV01, and convexity. Includes price-yield curve, CSV export.
- Break-even Point and Required Sales Calculator.
Calculate the break-even point, required sales to reach a target profit, and profit at your planned sales volume.
- Business Finance & Accounting (Margin/Breakeven/NPV/IRR).
Estimate pricing, margin/markup, breakeven, and investment evaluation (NPV/IRR). Compare assumptions and share by URL.
- Consumption Tax Calculator.
Calculate Japanese consumption tax with standard 10%, reduced 8% or custom rates per item.
- Credit card minimum payment simulator – payoff time.
Estimate months to payoff and total interest by entering balance, APR, and your card’s minimum payment policy (rate.
- Credit Card Payoff & Debt Snowball Calculator.
Estimate payoff time, total interest, and compare debt snowball vs.
- DCF Calculator — Simple valuation with sensitivity.
Simple DCF calculator with FCF paste input, Gordon growth or exit multiple terminal value, sensitivity table, CSV.
- Debt-to-income (DTI) ratio calculator.
Enter monthly income and monthly debt payments to compute your DTI percentage and a quick category label.
- Deposit interest calculator: future value & EAR.
Find future value, interest, and EAR from deposit amount, rate, years, and compounding choice.
- Electricity Cost Calculator | kWh Use & Running Cost.
Estimate electricity use and running cost from watts, hours per day, quantity, and your own price per kWh.
- EMI calculator (loan EMI, monthly payment).
Calculate EMI (Equated Monthly Installment) from principal, annual interest rate, and term.
- Fee Drag Calculator – How fund fees reduce long-term returns.
Compare 0% vs annual fees (expense ratio).
- Finance Function Calculators (PV/FV/PMT/NPV/IRR).
Use calculators for PV/FV/PMT, NPV/IRR, and interest-rate conversion. Compare scenarios and share assumptions.
- Fixed Deposit (FD) calculator.
Compute maturity value, interest earned, and effective annual rate (EAR) from principal, annual rate, years.
- GST Calculator (Add/Inclusive).
Enter amount and GST rate (5/12/18/28%) to compute base, GST amount, and total for both exclusive and inclusive cases.
- Income Tax Calculator India (FY example).
Estimate India income tax with educational example slabs for selected fiscal years.
- Interest Rate Calculator (RATE) — Solve APR from Payments.
Solve interest rate from loan amount, payments, and term (Excel RATE equivalent).
- Interest Rate Converter (APR, APY, EAR).
Use this interest rate converter to switch between APR, APY/EAR, monthly, and daily rates, or run the reverse.
- Invoice net ↔ gross calculator for VAT checks.
Convert invoice amounts between net and VAT-inclusive totals.
- Lira ↔ kurus converter – split Turkish currency into.
Convert between Turkish lira and kurus with live calculations that respect 100 kurus = 1 lira.
- Live FX currency converter – ECB reference rates.
Convert currencies with live FX rates from ECB or Open ER API, view recent history, and share results.
- Loan affordability calculator – max payment (DTI).
Estimate the maximum monthly payment (EMI) and loan amount from monthly income, EMI ratio (DTI), APR, and term.
- Loan amortization schedule (with CSV export).
Build an amortization schedule with principal, interest, and balance per payment. Model extra payments and export.
- Margin & markup calculator – profit margin, markup.
Enter cost, price, margin %, or markup % and instantly solve the remaining fields.
- Mortgage and Loan Repayment Burden Checker.
Check your debt-to-income (DTI) ratio for a planned mortgage and other loans, and estimate how much you can safely.
- Mortgage Rate Increase Simulator — Payment and interest impact.
Simulate mortgage rate increase scenarios and compare payments vs a fixed-rate baseline.
- Net ↔ gross salary converter – illustrative tax.
Quickly convert between gross and net salary using a simple example tax rate. Educational only—actual payroll.
- New NISA savings simulator – tax-free allowance vs.
Project your New NISA contributions versus a taxable account, track annual and lifetime allowance usage, and compare.
- NPV Profile Chart.
Generate an NPV profile by sweeping discount rates.
- Payback period calculator – simple & discounted payback.
Compute simple and discounted payback from initial investment and periodic cash flows.
- Portfolio Rebalance Calculator.
Compute buy/sell amounts from current holdings and target weights.
- PPF Calculator (Annual Contribution — Educational).
Estimate maturity, total invested, and gain from annual contribution, APR, and years with a simple annual-compounding.
- Price, Cost, Margin and Markup Calculator.
Quickly calculate profit margin, markup, selling price and cost per unit.
- Recurring Deposit (RD) Calculator.
Compute maturity amount, total invested, and estimated gain from monthly deposits, annual rate, and years.
- Refinance break-even calculator – when closing costs pay off.
Compare current and refinanced loans.
- Rent vs Buy Calculator (Break-even with Costs & Investing).
Compare renting vs buying with mortgage, taxes, maintenance, selling costs, and investment opportunity cost.
- ROI & CAGR Calculator | Return on Investment and.
Calculate ROI, CAGR, gain or loss, and value multiple from an initial value and a final value.
- Salary gross ↔ net educational estimator – taxes.
Convert gross ↔ net salary using simple flat or example progressive rates.
- Savings Goal & Monthly Contribution Calculator.
Work out the monthly contribution to hit a savings goal, project how far your monthly deposits will grow, or estimate.
- Savings Goal Planner: Deposits, Time, Future Value.
Work out the deposit needed to hit a savings target, the time required at a chosen deposit, or the future value.
- Simple & Compound Interest, NPV & IRR Calculator.
Compare simple and compound present/future values alongside cash-flow NPV and IRR.
- SIP Calculator (Investment) Tool.
Compute maturity amount, total invested, and estimated gain from monthly investment amount, expected annual return.
- Split Bill Calculator (tax, weights, rounding, QR).
Split a bill with inclusive or exclusive tax, custom weights, representative adjustments, and share the result.
- Tip & split calculator – restaurant tip, bill sharing.
Enter the bill total and tip percentage to instantly see the tip amount, new total, and per-person share when.
- VAT / Sales Tax calculator – exclusive ↔ inclusive.
Convert between net and gross amounts for VAT or sales tax.
- VAT net ↔ gross quick converter – add VAT to net.
Quickly convert between VAT-exclusive (net) and VAT-inclusive (gross) prices at standard rates.
- Withdrawal Simulator — How long your portfolio lasts.
Simulate portfolio withdrawals with inflation adjustment and a max-withdrawal solver.
- XIRR Calculator (Irregular Cash Flows) – Paste CSV.
Calculate XIRR from irregular dated cash flows online.
- XNPV Calculator (Dated NPV for Irregular Cash Flows).
Calculate XNPV for irregular dated cash flows online.
FAQ
What should I do first on this page?
Start with the minimum required inputs or the first action shown near the primary button. Keep optional settings at defaults for a baseline run, then change one setting at a time so you can explain what caused each output change.
Why does this page differ from another tool?
Different pages often use different defaults, units, rounding rules, or assumptions. Align those settings before comparing outputs. If differences remain, compare each intermediate step rather than only the final number.
How reliable are the displayed values?
Values are computed in the browser and rounded for display. They are good for planning and educational checks, but for regulated or high-stakes decisions you should validate assumptions with official guidance or professional review.
Can I share and reproduce this result?
Yes. Use the share or URL controls when available. Keep a baseline case and one changed case so others can reproduce your reasoning and verify that the direction and scale of change are consistent.
Is my input uploaded somewhere?
Core calculations run locally in your browser. Some pages encode parameters in a shareable URL, but no automatic upload is performed unless you explicitly share that link.
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