Free Online Finance Calculators
Calculate interest, ROI, taxes, salary conversions, savings goals, and more with our free financial tools. Make smarter money decisions with accurate numbers.
Simple Interest Calculator
Enter principal, annual rate, and time to compute simple interest. Useful for short-term loans, bonds, and basic savings calculations.
Use tool →Discount Calculator
Enter the original price and discount percentage to see the final sale price and total savings. Perfect for shopping and deal comparisons.
Use tool →Markup Calculator
Enter the cost and markup percentage to determine the selling price. Essential for setting product prices and maintaining target profit margins.
Use tool →Margin Calculator
Enter the selling price and cost to calculate your profit margin percentage. A key metric for evaluating product profitability and pricing strategy.
Use tool →Sales Tax Calculator
Enter the price and local sales tax rate to see the tax amount and total price. Works for any tax rate in any jurisdiction worldwide.
Use tool →VAT Calculator
Enter a price and VAT rate to calculate the total including VAT. Useful for European invoicing, import duties, and international pricing.
Use tool →ROI Calculator
Enter the investment cost and gain to calculate your return on investment percentage. A fundamental metric for comparing investment performance.
Use tool →Profit Calculator
Enter your revenue and total costs to calculate net profit. A straightforward tool for quick profitability analysis of products, projects, or periods.
Use tool →Break-Even Calculator
Calculate the break-even point by entering fixed costs, selling price per unit, and variable cost per unit. Know exactly when your venture becomes profitable.
Use tool →Hourly to Salary Calculator
Convert any hourly rate to an annual salary estimate. Assumes 52 working weeks per year. Adjust hours per week to match your schedule.
Use tool →Salary to Hourly Calculator
Convert an annual salary to an equivalent hourly rate. Helps compare job offers, evaluate freelance rates, and understand your true hourly earnings.
Use tool →Overtime Calculator
Enter total hours worked and your hourly rate to calculate overtime pay at the standard 1.5x rate for hours exceeding 40 per week.
Use tool →Inflation Calculator
Enter an amount, inflation rate, and number of years to see how inflation erodes purchasing power over time. Plan for rising costs and retirement.
Use tool →Future Value Calculator
Enter the present value, annual interest rate, and time horizon to compute how much your investment will grow with compound interest.
Use tool →Present Value Calculator
Determine what a future sum is worth today by discounting it at a given rate. Essential for evaluating investments and comparing cash flows.
Use tool →Savings Goal Calculator
Set a savings target and timeline to find out how much you need to save each month. Optionally factor in interest to reduce the required amount.
Use tool →Rule of 72 Calculator
Enter an annual interest rate to estimate how many years it takes to double your investment using the Rule of 72 — a quick mental math shortcut.
Use tool →Learn More
Read our comprehensive guide to get the most out of these tools.
Read the Finance Calculators Guide →