Smart Cost Calculators for Smarter Decisions

Free tools to estimate insurance premiums, loan payments, taxes and savings in the United States. Pick a calculator, enter your numbers and see results instantly.

Insurance Calculators

Car Insurance Cost CalculatorHealth Insurance Cost CalculatorHome Insurance Cost CalculatorLife Insurance Cost CalculatorPet Insurance Cost CalculatorRenters Insurance Cost Calculator

Loans Calculators

Auto Loan CalculatorDebt Payoff CalculatorHome Affordability CalculatorMortgage Payment CalculatorPersonal Loan CalculatorStudent Loan Calculator

Tax & Salary Calculators

Hourly to Salary CalculatorFederal Income Tax CalculatorPaycheck CalculatorSales Tax Calculator

Savings Calculators

Compound Interest CalculatorRetirement (401k) Calculator

Business Calculators

Break-Even CalculatorProfit Margin Calculator

Health Calculators

BMI CalculatorCalorie Calculator

Why use Tools30?

Insurance, loans and taxes are among the biggest costs for American households, yet prices are rarely shown up front. Our calculators give a quick private estimate so you can budget, compare options and ask better questions before requesting an official quote.

Private by design

All calculations run in your browser. We never receive the numbers you type, and you do not need an account.

Clear methods, honest limits

Each page explains the formula behind the result, shows a worked example and states the limits of the estimate. Learn more on our methodology and editorial policy pages.

Popular guides

New to budgeting? Start with the mortgage calculator to see what a home really costs, the paycheck calculator to understand take-home pay, or the compound interest calculator to see how saving early pays off.