Free Online Calculators
Simple tools to help you make better financial decisions. No login required, completely free.
Recently Updated Calculators
Popular Calculators
💰 Financial Calculators
See all →Loan Payment Calculator PRO
Calculate annuity & decreasing payments, simulate overpayments, compare scenarios.
Mortgage Calculator
Calculate your monthly mortgage payment based on home price and down payment.
Compound Interest Calculator PRO
Delay cost simulation, scenario comparison, real rate with inflation adjustment.
Inflation Calculator PRO
Compare scenarios, see year-by-year timeline, calculate minimum return to protect capital.
Salary Calculator
Convert annual salary to hourly rate and vice versa.
ROI Calculator PRO
Investment return analysis, year-by-year timeline, benchmark comparison, dynamic interpretation.
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.
Leasing Calculator
Calculate monthly lease payments and compare leasing vs buying.
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.
Debt Payoff Calculator
Calculate how long to pay off debt and total interest paid.
Margin Calculator
Calculate profit margin, markup, and selling prices.
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.
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.
⚡ Energy & Home Calculators
See all →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.
🚗 Auto & Transport Calculators
See all →🔧 Utility Calculators
See all →Fuel Cost Calculator
Calculate fuel costs for any trip based on distance and consumption.
Percentage Calculator
Calculate percentages, percentage change, add or subtract percentages.
Electricity Cost Calculator
Calculate how much an appliance costs to run per day, month, and year.
Heating Cost Calculator
Calculate annual heating costs based on area and fuel type.
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.
Length Converter
Convert length units — meters, feet, inches, miles, kilometers and more.
Weight Converter
Convert weight units — kilograms, pounds, ounces, stones and more.
Temperature Converter
Convert temperature units — Celsius, Fahrenheit, Kelvin.
Volume Converter
Convert volume units — liters, gallons, cups, milliliters and more.
Speed Converter
Convert speed units — km/h, mph, knots, m/s and more.
Area Converter
Convert area units — square meters, acres, hectares, square feet and more.
Cooking Converter
Convert cooking measurements — cups, tablespoons, teaspoons, ml, grams.
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.
Concrete Calculator
Calculate how much concrete you need for your project.
Fraction Calculator
Add, subtract, multiply, and divide fractions.
📅 Date & Life Calculators
See all →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.
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.
No calculators found. Try a different search term.