Finance calculators

B

• 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.
• Bond Price ↔ Yield (YTM) Calculator.
  Compute bond price and yield to maturity (YTM) from coupon, maturity, and price or yield.
• 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.

C

• Compound Interest Calculator.
  Estimate future value and Effective Annual Rate from APR, compounding frequency, years, and optional monthly.
• 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.

D

• 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.
• Discount calculator – stacked percentage, amount.
  Enter a list price and stack percentage cuts, fixed-amount deals and coupons to see final price and savings.

E

• EMI calculator (loan EMI, monthly payment).
  Calculate EMI (Equated Monthly Installment) from principal, annual interest rate, and term.

F

• Fee Drag Calculator – How fund fees reduce long-term returns.
  Compare 0% vs annual fees (expense ratio).
• Fixed Deposit (FD) calculator.
  Compute maturity value, interest earned, and effective annual rate (EAR) from principal, annual rate, years.
• 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.

G

• 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.

I

• 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, monthly, daily).
  Convert APR to APY/EAR and monthly or daily rates, or run the reverse conversion to compare loans, cards, and savings.
• Invoice net ↔ gross calculator – add or remove VAT on.
  Convert net ↔ gross invoice amounts with a VAT rate.

L

• 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.
• Loan calculator (monthly payment, interest, payoff).
  Calculate monthly loan payment, total interest, and payoff timeline from principal, APR, and term.

M

• 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.
• Mortgage repayment planner – monthly payments, lump sums.
  Simulate mortgage repayments with equal payment or equal principal methods, include bonus payments, lump-sum.

N

• 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 – sweep discount rates and visualise IRR.
  Generate an NPV profile by sweeping discount rates.

P

• 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.

R

• 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.
• Retirement Savings Calculator.
  Project your retirement nest egg by combining current savings, recurring monthly contributions, investment growth.

S

• 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.

T

• 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.
• TVM Solver (PV/FV/PMT/NPER/RATE) — Loan & Investment.
  Solve PV, FV, PMT, NPER, and RATE in one place. Supports loan/investment modes, APR/EAR output, CSV export.

V

• 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.

W

• Withdrawal Simulator — How long your portfolio lasts.
  Simulate portfolio withdrawals with inflation adjustment and a max-withdrawal solver.

X

• 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.