Finance Tools

Plan smarter with finance calculators: loans, ROI/NPV, savings, mortgage and currency conversions—clear results, instant math.

29 tools available

Blockchain Tools 6

DCA Calculator

Free DCA simulator: model crypto dollar-cost-averaging across 3 price-path scenarios. See harmonic-mean average cost, ROI, DCA vs lump-sum chart.

Crypto Profit/Loss Calculator

Calculate crypto profit, loss, ROI and break-even with buy/sell fees. Token-decimal-aware, BigInt-precise, 100% private, with CSV/JSON export.

Impermanent Loss Calculator

Calculate impermanent loss for Uniswap V2/V3, Balancer weighted & Curve pools. Compare LP vs HODL, add fee-APR break-even, export CSV. Free, in-browser.

Lido Rewards Tracker

Track Lido stETH liquid staking rewards across multiple wallets. Daily rebase APR, compounded APY, net-of-fee yield and CSV tax export in USD/EUR/GBP.

APR to APY Converter

Convert APR to APY (and back) with daily, monthly, quarterly or continuous compounding. Compare effective yields for DeFi staking, savings accounts and lending.

Staking Rewards Calculator

Calculate ETH staking rewards with live DefiLlama APY from Lido, Rocket Pool, Ether.fi, Aave V3. Net-of-fee daily, monthly, yearly. Private, in-browser.

Calculators 23

Financial Calculators 21

Break-even calculator

Free break-even calculator: break-even point in units and sales, contribution margin, target profit, margin of safety and operating leverage with a chart.

Compound interest calculator

Calculate compound interest with daily to annual compounding, regular contributions, annual escalation, APY and inflation-adjusted real value.

Discount calculator

See sale price, the amount and percent you save, tax applied after the discount, and a margin guard that flags if a promo drops below cost. Free and fast.

EMI calculator

Free EMI calculator for home, car & personal loans: monthly installment, total interest, reducing-balance amortization plus extra-payment prepayment savings.

EV Charging Cost

Calculate the cost to charge an electric car at home vs public DC fast charging. Cost per kWh and per mile, EV vs gas savings, plus annual and monthly cost.

Effective interest rate calculator

Convert nominal rate (APR) to effective annual rate (EAR/APY) for any compounding, or convert APY back to the required nominal rate. Compare loans and savings.

FIRE Number Calculator

FIRE number calculator: find how much you need to retire early, your years to FIRE from your savings rate, Coast FIRE, 25x rule and SWR bands.

Fuel cost calculator

Calculate trip fuel cost in km or miles with L/100km, MPG or km/L. Get cost per mile/km plus daily, weekly, monthly and yearly commute or fleet budgets.

GST calculator

Add or remove GST from inclusive or exclusive prices: Australia 10%, Canada 5%, India, NZ 15%, Singapore 9%. Totals reconcile to the cent for BAS and invoices.

Import Duty Calculator

Estimate import duty, VAT and landed cost by HS code, Incoterm (CIF/FOB) and destination. Free Section 321 de minimis checker with broker checklist.

Inflation calculator

Project how inflation erodes purchasing power over time, then check if a return beats inflation with a real rate of return calculator. Multi-currency.

Loan calculator

Calculate loan payments, total interest and a full amortization schedule with extra payments and APR/APY. Export the dated schedule to CSV.

Mortgage calculator

Calculate monthly mortgage payment with full PITI breakdown, amortization, auto PMI, property tax, insurance, HOA, and refinance break-even. Free and fast.

Profit margin calculator

Profit margin calculator for gross, operating, EBIT and true net margin with interest and tax inputs. Find price from target margin and markup vs margin.

ROI calculator

Free ROI calculator for return on investment, annualized return, payback period, real inflation-adjusted ROI, and a hurdle-rate accept/reject check.

Salary tax calculator

Free salary tax calculator: convert gross to net pay (or net to gross), with income tax, capped insurance, bonus, and effective-rate breakdown.

Savings goal calculator

Find how much to save monthly to hit your goal, with compound interest, future value, and inflation-adjusted (today's dollars) targets.

Simple interest calculator

Compute simple interest with I=P×R×T, or solve backward for the rate, principal, or time. Get interest and total amount instantly. Free online calculator.

Stablecoin Yield Comparator

Compare stablecoin APY from Aave, Compound, Sky, Ethena, Pendle and Coinbase side by side. Risk-adjusted ranking, fees, inflation and basis-point gaps.

Tip calculator

Calculate tip and split the bill per person in any currency. Round each share to clean cash, see the effective tip %, and tipping by country.

VAT calculator

Add or remove VAT, extract VAT from inclusive prices, and total Net, VAT and Gross across multiple lines. Preset 2026 rates for the UK, EU and 37 countries.

Math Calculators 2

Exponent calculator

Exponent calculator for a^n: integer, fractional, negative powers, scientific notation. Exact BigInt integers, compound interest, doubling time.

Percentage calculator

Free percentage calculator with 6 modes: % of value, % change, increase/decrease, reverse %, discount and CAGR. For taxes, discounts and growth.