CalculateLocal rules
Calculations reflect guidance from IRS and state authorities and responsible bodies.
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Calculators for United States
Built for USD, local tax rules, and familiar number formats.
10 most popular calculators in United States
US Mortgage & Amortization
US Mortgage & Amortization Calculator (PITI) built around United States rules, rates, and USD amounts.
Calculate now ›
Federal & State Income Tax
Federal & State Income Tax Calculator built around United States rules, rates, and USD amounts.
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Compound Interest & Retirement Planner
Compound Interest & Retirement Planner (401k/IRA) built around United States rules, rates, and USD amounts.
Calculate now ›Auto Loan
Auto Loan Calculator built around United States rules, rates, and USD amounts.
Calculate now ›Net Take-Home Pay
Net Take-Home Pay (Salary) Calculator built around United States rules, rates, and USD amounts.
Calculate now ›Student Loan Payoff
Student Loan Payoff Calculator built around United States rules, rates, and USD amounts.
Calculate now ›Credit Card Payoff
Credit Card Payoff Calculator built around United States rules, rates, and USD amounts.
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BMI & TDEE Calorie
BMI & TDEE Calorie Calculator built around United States rules, rates, and USD amounts.
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Pregnancy & Due Date
Pregnancy & Due Date Calculator built around United States rules, rates, and USD amounts.
Calculate now ›Social Security Benefit Estimator
Social Security Benefit Estimator built around United States rules, rates, and USD amounts.
Calculate now ›CALCULATORS FOR EVERY DECISION
20localizedExplore all calculators for United States
Choose a topic below to find tools built for USD, local rules, and familiar number formats.
calculators
Tax & Salary
Income tax, deductions and take-home pay
Loans & Mortgages
Home, personal and vehicle financing
Savings & Investment
Interest, retirement and investment returns
Property
Property taxes, fees and affordability
Everyday
Percentages, dates, costs and utilities
Health & Fitness
BMI, calories and physical wellbeing
Work & Career
Pay, leave and employment planning
Family & Life
Family benefits and life planning
Built for United States rules and formats
USD and local formatting
Results use the en-US locale and local number conventions.
Regional accuracy
Regional selectors support tax, property and benefit differences.
Current-year ready
We review thresholds, rates and guidance as changes are published.
Sources & trust
Our calculators use official guidance and transparent assumptions.
- IRS and state authorities
- National statistics and monetary authorities
- Regional government portals where applicable
Important
Results are estimates and are not a substitute for professional financial, tax, legal or medical advice.
ⓘ Check official guidance before making a decision.Frequently asked questions
Are these calculators specific to United States?
Yes. Currency, formatting and explanatory content are tailored to United States.
Which financial year do the calculators use?
Each calculator identifies its applicable period, update date and assumptions.
How are numbers displayed?
Amounts use USD and the en-US number format.
How often are calculators updated?
We review them annually and whenever an official rule changes.