Mortgage Calculator
Estimate monthly mortgage payments including taxes, insurance and HOA.
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Estimate mortgage payments, take-home pay, loan costs, savings growth and everyday numbers — fast, free, and with the formula and a worked example on every page.
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Paycheck Calculator
Estimate US take-home pay after federal, Social Security, Medicare and state tax.
Loan Calculator
Work out monthly loan payments, total interest and total cost.
Compound Interest Calculator
See how savings and investments grow with compound interest and monthly contributions.
Salary to Hourly Calculator
Convert an annual salary to an hourly rate — and hourly pay back to a salary.
Percentage Calculator
Find percentages, percentage of a number, and percentage change in seconds.
Age Calculator
Calculate exact age in years, months and days from a date of birth.
BMI Calculator
Calculate Body Mass Index (BMI) in metric or imperial units.
Tip Calculator
Calculate a tip and split the total bill fairly between people.
GPA Calculator
Work out your Grade Point Average on the 4.0 scale from grades and credit hours.
Auto Loan Calculator
Estimate a monthly car payment including sales tax, down payment and trade-in.
Savings Goal Calculator
See how long it takes to reach a savings goal, and the monthly amount a deadline needs.
Date Calculator
Count days between two dates, or add and subtract days from a date.
From the blog
How Mortgage Payments Are Calculated
The formula behind your monthly payment, what PITI means, and why early payments are mostly interest.
15-Year vs 30-Year Mortgage
The same $320,000 loan both ways — and the $249,826 difference in total interest.
Gross Pay vs Net Pay
Where your paycheck actually goes: taxes, Social Security, retirement and health deductions explained.
Compound Interest Explained
How interest on interest turns $10,000 into $76,000, plus the Rule of 72 shortcut.
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Every calculator on WiseCalcHub is free, works in your browser (your numbers are not sent to a server), and explains how the result is calculated. Finance results are estimates only and are not financial advice — see our Disclaimer.