Most Popular Calculators

Used by millions — pick yours and get your answer in seconds.

💰 Financial Calculators

Loans, mortgages, taxes, investments, and retirement planning.

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Financial Calculators
15 tools available — all free
🏠
Mortgage Calculator
Calculate your monthly mortgage payment including principal, interest, taxes, and insurance
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Loan Calculator
Find your monthly payment, total interest, and payoff schedule for any loan
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Auto Loan Calculator
Calculate car loan payments with tax, trade-in, and down payment options
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Compound Interest Calculator
See how your savings grow over time with compound interest
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Investment Calculator
Project investment returns with inflation adjustment and monthly contributions
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Retirement Calculator
Plan your retirement savings and see how much you'll have at retirement age
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Amortization Calculator
View a full loan amortization schedule with month-by-month breakdown
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Interest Calculator
Calculate simple or compound interest on any principal amount
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Payment Calculator
Calculate monthly, bi-weekly, or weekly payments for any debt
💼
Salary Calculator
Convert salary between annual, monthly, weekly, and hourly rates
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Income Tax Calculator
Estimate your US federal income tax for 2024 with bracket breakdown
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Sales Tax Calculator
Calculate the final price after adding sales tax to any amount
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Inflation Calculator
Find out how inflation affects the purchasing power of money over time
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Finance Calculator
Solve for present value, future value, interest rate, or number of periods
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Interest Rate Calculator
Find the interest rate on a loan given the payment, term, and principal

🏃 Fitness & Health Calculators

BMI, calories, body fat, pregnancy, and pace calculators.

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📐 Math Calculators

Fractions, percentages, statistics, and geometry.

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🔧 Other Calculators

Age, date, time, GPA, conversion, and more.

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🔧
Other Calculators
10 tools available — all free
🎂
Age Calculator
Calculate your exact age in years, months, days, hours, and minutes
🗓️
Date Calculator
Find the number of days between two dates or add/subtract days from a date
⏱️
Time Calculator
Add or subtract hours, minutes, and seconds from any time
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Hours Calculator
Calculate total work hours between start and end times with break deduction
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GPA Calculator
Calculate your weighted GPA by entering your courses, credits, and grades
📝
Grade Calculator
Calculate your final weighted grade from multiple assignments and exams
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Password Generator
Generate strong, random passwords with custom length and character sets
🔄
Conversion Calculator
Convert between units of length, weight, temperature, area, volume, and speed
🏗️
Concrete Calculator
Calculate the volume of concrete needed for slabs, columns, and footings
🌐
IP Subnet Calculator
Calculate network address, broadcast, host range, and usable IPs for any CIDR block

About USCalculator.net

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