Smart Calculators for
Everyday Decisions
Fast, simple and easy-to-understand calculators
for money, work and everyday life.
Kept private.
Everyday favorites
Useful tools for the questions that come up most.
Hourly to Salary
Turn your hourly rate into weekly, monthly, and annual gross pay.
Percentage
Find a percentage of a number, including decimal and negative values.
Compound Interest
Explore growth when interest is added to your balance and earns more interest.
Loan Payment
Estimate a fixed loan payment, total interest, and repayment schedule for monthly, biweekly, or weekly installments.
Mortgage
Estimate the full monthly housing budget, separating mortgage principal and interest from taxes, insurance, and other costs.
Auto Loan
Estimate vehicle financing after cash down, trade-in equity, and user-entered taxes and fees.
A calculator for your kind of question
Salary & Pay
Understand your pay, compare hourly and annual earnings, and work out overtime or a raise.
12 calculatorsEveryday Math
Make sense of percentages and changes with clear formulas and practical examples.
11 calculatorsMoney & Finance
Split a tip, check a discount, or explore how simple and compound interest grow.
29 calculatorsMortgage & Housing
Explore housing payments, down payments, and a home budget using your own rates and costs.
12 calculatorsAuto & Transportation
Compare vehicle financing and estimate fuel costs with clearly labeled international units.
6 calculatorsBusiness
Understand selling prices, margins, markups, and the sales needed to cover your costs.
17 calculatorsTime & Date
Count calendar intervals, combine durations, and calculate work time with explicit date and clock conventions.
6 calculatorsUnit Conversions
Convert measurements using fixed definitions and explicit units, including decimal and binary storage.
9 calculatorsTravel & Pace
Plan shared trip budgets, estimate driving duration, and translate distance and time into pace.
4 calculatorsHome & Construction
Estimate surfaces, material quantities, and simple geometry with explicit measurement units and planning assumptions.
12 calculatorsMath & Statistics
Explore datasets, spread, counting methods, and exact integer arithmetic with transparent mathematical conventions.
22 calculatorsHealth & Fitness
Explore informational adult body estimates and movement conversions with local, private calculations and clear limitations.
6 calculatorsEducation & Study
Plan coursework, grade targets, credit-weighted grade points, and study time using your own assessment assumptions.
4 calculatorsSmall amounts.
A bigger picture.
See how time and compound interest work together. Adjust the numbers, explore the possibilities, and understand the math.
Explore compound interest10,000 · 5% annually · 10 years
A little guidance goes a long way
Practical explanations to help you use your results.
APR vs APY: Compare the Right Rate
Distinguish nominal interest, effective yield, and a loan rate estimated from net proceeds after fees.
1 min read Read guide →How Mortgage Payments Work
Separate the amortizing loan from property tax, insurance, HOA charges, and other housing costs.
1 min read Read guide →Markup vs Margin
Use the correct denominator when translating product costs, selling prices, and gross profit.
1 min read Read guide →Clear answers. Nothing in the way.
USCalcly helps you make sense of everyday numbers, with tools that respect your time and your privacy.
The math, made clear
See the formula, follow a worked example, and understand the assumptions.
Your inputs stay yours
Calculations run in your browser. No account or personal information needed.
A familiar currency
Choose your country for currency display. The same useful tools, wherever you are.