Free browser-based digital toolsEnglish edition
FREE ONLINE TOOLS

General Calculators

Practical calculators for percentages, pricing, loans, investments and everyday financial planning.

17 tools

Loan Payment Calculator

Estimate monthly loan payments, total repayment and total interest using amount, annual rate and term.

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Mortgage Calculator

Estimate mortgage payments after a down payment and compare principal, total repayment and interest.

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Compound Interest Calculator

Estimate future investment value from an initial amount, monthly contributions, annual return and investment term.

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Monthly Investment Calculator

Project the future value of an initial investment with recurring monthly contributions and compound returns.

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BMI Calculator

Calculate body mass index from height and weight and view the standard adult BMI reference category.

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Reverse Percentage Calculator

Find the original total when a known value represents a specified percentage of that total.

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Discount Calculator

Calculate a sale price and savings amount from the original price and percentage discount instantly.

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Simple Feasibility Calculator

Estimate operating profit, forecast net result and payback period from startup cost, revenue and monthly costs.

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Product Pricing Calculator

Calculate a suggested selling price from product cost, target profit margin and optional sales tax or VAT.

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Discount Percentage Calculator

Find the percentage discount and amount saved when you know the original and current sale prices.

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Tip & Split Bill Calculator

Calculate a tip before or after tax, include an existing service charge, and split the final bill with exact cent amounts.

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Hourly to Salary Calculator

Convert an hourly wage into annual gross pay and monthly averages, accounting for weekly hours and unpaid weeks.

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Grocery Unit Price Calculator

Compare two package prices using ounces, pounds, metric weights, US liquid measures or item counts to find the lower unit price.

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Apartment Move-In Cost Calculator

Plan upfront apartment costs separately from ongoing monthly housing expenses, using your own rent, deposit, fee and moving estimates.

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Gas Trip Cost Calculator

Estimate road-trip fuel in US gallons from miles and MPG, add tolls and parking, and split the total travel budget.

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Coffee Cost Calculator

See your daily and weekly coffee spending, plus monthly and annual averages, using your cups, price and drinking days.

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Caffeine Intake Calculator

Estimate caffeine from drink sizes and daily servings. Use reference values or product-label amounts and include other caffeine sources.

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