Free Online Calculators

Simple tools to help you make better financial decisions. No login required, completely free.

All Calculators (48)

Loan Payment Calculator

Calculate monthly payments, total interest, and total cost for any loan.

Mortgage Calculator

Calculate your monthly mortgage payment based on home price and down payment.

Compound Interest Calculator

See how your investments grow over time with compound interest.

Inflation Calculator

See how inflation erodes your purchasing power over time.

Salary Calculator

Convert annual salary to hourly rate and vice versa.

ROI Calculator

Calculate return on investment and payback period.

Fuel Cost Calculator

Calculate fuel costs for any trip based on distance and consumption.

Percentage Calculator

Calculate percentages, percentage change, add or subtract percentages.

Car Loan Calculator

Calculate monthly car loan payments and total financing cost.

Savings Goal Calculator

Calculate how much to save monthly to reach your financial goal.

Electricity Cost Calculator

Calculate how much an appliance costs to run per day, month, and year.

Leasing Calculator

Calculate monthly lease payments and compare leasing vs buying.

Heating Cost Calculator

Calculate annual heating costs based on area and fuel type.

Break-even Calculator

Find out when your business becomes profitable.

Rent vs Buy Calculator

Compare the total cost of renting vs buying a home.

Depreciation Calculator

Calculate asset depreciation using straight-line method.

Tip Calculator

Calculate tips and split bills between multiple people.

VAT Calculator

Add or remove VAT from any price quickly.

Discount Calculator

Calculate sale prices and savings from percentage discounts.

Unit Converter

Convert between metric and imperial units for length, weight, temperature.

Age Calculator

Calculate your exact age in years, months, days, and hours.

Date Calculator

Add or subtract days from dates and find days between dates.

Pace Calculator

Convert between pace and speed for running and cycling.

Time Calculator

Add or subtract hours, minutes, and seconds easily.

Area Calculator

Calculate the area of rectangles, circles, triangles, and more.

Volume Calculator

Calculate volume of cubes, cylinders, spheres, cones, and more.

Debt Payoff Calculator

Calculate how long to pay off debt and total interest paid.

Margin Calculator

Calculate profit margin, markup, and selling prices.

Concrete Calculator

Calculate how much concrete you need for your project.

Fraction Calculator

Add, subtract, multiply, and divide fractions.

Interest-Only Loan Calculator

Calculate payments for interest-only loans and compare with standard mortgages.

Refinance Calculator

Find out if refinancing your loan is worth it and calculate savings.

APR Calculator

Calculate the true Annual Percentage Rate including all fees.

Loan Affordability Calculator

Find out how much loan you can afford based on your income.

Monthly Budget Calculator

Track income and expenses with the 50/30/20 rule.

Solar Panel ROI Calculator

Calculate payback period and return on investment for solar panels.

Heat Pump Calculator

Calculate heat pump costs, savings, and payback period.

Home Energy Calculator

Calculate total home energy costs including electricity, heating, and water.

Insulation Savings Calculator

Calculate how much you can save on heating by improving insulation.

Total Car Cost Calculator

Calculate the true total cost of car ownership including depreciation.

Fuel vs Electric Calculator

Compare total cost of ownership between gas and electric vehicles.

Lease vs Buy Calculator

Compare the true cost of leasing vs buying a car.

Cashflow Calculator

Track monthly income and expenses with savings rate analysis.

Startup Runway Calculator

Calculate how many months your startup can operate before running out of cash.

Price Markup Calculator

Calculate selling prices, profit margins, and markup from cost.

Inventory Cost Calculator

Calculate the real cost of holding inventory including capital and storage.

Relocation Cost Calculator

Estimate all costs of moving to a new city or country.

Child Cost Calculator

Estimate the total cost of raising a child from birth to adulthood.