Finance Calculators
40 free calculators for business profitability, loans, debt payoff, savings growth, salary planning, tax, and marketing ROI — all running privately in your browser with no data sent anywhere.
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Browse by Category
Business Finance
Profit margins, markup, break-even, and business cost analysis.
9 tools →
Salary & Income
Hourly/salary conversions, overtime, paycheck, and freelance rate tools.
7 tools →
Loans
Monthly payments, amortization schedules, interest costs, and payoff timelines.
5 tools →
Debt & Credit
Debt snowball, avalanche, credit card payoff, and debt-to-income ratio.
6 tools →
Savings & Interest
Compound savings projections, savings goals, APY, APR, and simple interest.
5 tools →
Tax & Pricing
Sales tax, discounts, tax-inclusive/exclusive prices, and pricing tools.
4 tools →
Marketing & ROI
ROI, ROAS, cash flow, revenue growth, and profitability metrics.
4 tools →
Profit Margin Calculator
Calculate gross, operating, or net profit margin as a percentage of revenue.
Markup Calculator
Find the markup percentage or selling price needed to achieve your target margin.
Break-Even Calculator
Determine how many units you must sell to cover fixed and variable costs.
Discount Calculator
Calculate the discounted price, savings amount, and discount percentage for any item.
Commission Calculator
Compute sales commission earnings based on rate, sales amount, or tiered structures.
Gross Profit Calculator
Calculate gross profit and gross margin from revenue and cost of goods sold.
Net Profit Calculator
Find net profit after subtracting all costs, expenses, and taxes from total revenue.
Operating Margin Calculator
Calculate operating margin (EBIT margin) from revenue and operating expenses.
Business Margin Calculator
Compare gross, operating, and net margins side-by-side for a complete profitability picture.
Hourly to Salary Calculator
Convert an hourly wage to annual, monthly, bi-weekly, and weekly salary equivalents.
Salary to Hourly Calculator
Convert an annual salary to an equivalent hourly rate based on hours worked per week.
Overtime Calculator
Calculate overtime pay for regular and overtime hours at 1.5× or custom multipliers.
Pay Raise Calculator
Find out how much a pay raise is worth annually, monthly, or per paycheck.
Paycheck Calculator
Estimate your take-home pay after federal and state taxes, FICA, and deductions.
Freelance Rate Calculator
Calculate a sustainable hourly freelance rate based on desired income, hours, and expenses.
Hourly Rate Calculator
Determine the minimum hourly rate needed to meet your income goals and cover all costs.
Loan Payment Calculator
Calculate monthly loan payments for any principal, interest rate, and loan term.
Loan Interest Calculator
Find out the total interest paid over the life of a loan with full amortization detail.
Loan Payoff Calculator
See how long it takes to pay off a loan and the total cost at your current payment.
Extra Payment Loan Calculator
Calculate how extra monthly or lump-sum payments reduce your loan term and total interest.
Loan Amortization Calculator
Generate a full month-by-month amortization schedule for any loan.
Debt Payoff Calculator
Calculate how long it takes to pay off multiple debts and the total interest cost.
Debt Snowball Calculator
Use the debt snowball method — pay smallest balances first to build momentum.
Debt Avalanche Calculator
Use the debt avalanche method — target highest-interest debts first to minimize total cost.
Credit Card Payoff Calculator
Find out how long it takes to pay off your credit card balance and total interest paid.
Credit Card Minimum Payment Calculator
See the true cost of only making minimum payments on your credit card over time.
Debt-to-Income Calculator
Calculate your debt-to-income (DTI) ratio to understand your borrowing capacity.
Savings Calculator
Project how your savings grow with regular contributions and compound interest over time.
Savings Goal Calculator
Find out how much to save each month to reach a specific financial goal by a target date.
Simple Interest Calculator
Calculate simple interest earned or owed on any principal, rate, and time period.
APY Calculator
Convert an annual percentage rate (APR) to annual percentage yield (APY) with compounding.
APR Calculator
Calculate the true annual percentage rate (APR) of a loan including fees and charges.
Sales Tax Calculator
Add or remove sales tax from any price and find the pre-tax or post-tax amount.
Price After Discount Calculator
Quickly find the final price after applying a percentage or fixed-amount discount.
Tax-Inclusive Price Calculator
Calculate the price with tax already included (tax-inclusive / gross price) from a net price.
Tax-Exclusive Price Calculator
Remove tax from a tax-inclusive price to find the original net (tax-exclusive) price.
ROI Calculator
Calculate return on investment (ROI) percentage and net gain for any investment.
ROAS Calculator
Calculate return on ad spend (ROAS) to measure advertising campaign efficiency.
Cash Flow Calculator
Calculate net cash flow from operating, investing, and financing activity totals.
Revenue Growth Calculator
Calculate year-over-year or period-over-period revenue growth rate as a percentage.