Finance Calculators
Loan, mortgage, compound and simple interest, ROI, margin, sales tax, savings, debt payoff, inflation and invoice tools to plan money decisions with confidence.
Compound Interest Calculator
Calculate compound interest with optional monthly contributions. See final balance, total interest and a year-by-year growth table for any rate and term.
Simple Interest Calculator
Calculate simple interest with the I = P × r × t formula. Enter principal, annual rate and time to see the interest and total amount instantly.
Loan Calculator
Calculate your monthly loan payment, total interest and total cost. Includes a full amortization schedule for any loan amount, rate and term.
Mortgage Calculator
Estimate your monthly mortgage payment including principal, interest, property tax and insurance. See total interest over the life of the home loan.
Tip Calculator
Calculate the tip and total for any bill, then split it evenly between people. Quick 15%, 18% and 20% buttons for fast gratuity at restaurants.
Margin & Markup Calculator
Calculate profit margin, markup and profit from cost and selling price, or find the price for a target margin. Ideal for pricing products and quotes.
Break-Even Calculator
Find your break-even point in units and revenue from fixed costs, price per unit and variable cost. Essential for pricing and small-business planning.
ROI Calculator
Calculate return on investment, net profit and annualized ROI from the amount invested and returned. Compare investments over any holding period.
Sales Tax Calculator
Add sales tax to a net price or extract tax from a gross price at any rate. See the net, tax and gross amounts instantly for receipts and invoices.
Salary to Hourly Calculator
Convert an annual salary to an hourly wage or an hourly rate back to a yearly salary, with monthly, weekly and daily pay equivalents. Free and private.
Savings Goal Calculator
Work out how much to save each month to reach a target amount by a set date, including interest earned. Free savings goal calculator, 100% in-browser.
Debt Payoff Calculator
Plan how fast you can clear multiple debts using the snowball or avalanche method. See payoff time, total interest and payment order. Free and private.
CAGR Calculator
Calculate the compound annual growth rate (CAGR) from a beginning value, ending value and number of years. See the formula and total growth. Free tool.
Inflation Calculator
See how inflation erodes purchasing power over time, or what a past amount is worth today. Enter an amount, rate and years. Free, private inflation tool.
Invoice Generator
Create a professional invoice with line items, tax and totals, then export a clean PDF — all in your browser. Free invoice generator, nothing uploaded.
Fuel Cost Calculator
Estimate the fuel cost and amount of fuel for any trip using distance, efficiency and fuel price. Supports miles/km and MPG or L/100km. Free and private.
Freelance Rate Calculator
Calculate the hourly and day rate you need to charge as a freelancer from your target income, expenses and billable hours. Free, private and instant.