QuickCalc USA

Work out the tip and total for your restaurant bill in seconds, and split it evenly between friends. Choose 15%, 18%, 20% or any custom tip percentage. Tip Calculator Bill amount, tip %, and how many people are paying Bill amount ($) Tip percentage (%) Split between (people) Round up total? No Yes – to nearest dollar Calculate How much should you tip in the USA? The standard tip at a sit-down restaurant in the United States is 15% to 20% of the pre-tax bill. 18% is a common middle ground, 20% or more for excellent service. For bartenders, $1–2 per drink or 15–20% of the tab is typical; for food delivery 10–15% (minimum $3–5); for hairdressers and taxi/rideshare drivers 15–20%. Tip formula Tip = Bill × (Tip % ÷ 100). Total = Bill + Tip. Per person = Total ÷ number of people. For a $60 bill at 18%, the tip is $10.80 and the total is $70.80 – $35.40 each for two people. Should I tip on the tax? Etiquette says tip on the pre-tax amount, but many people simply tip on the total f...

Find out exactly how much sales tax you will pay in any US state. Enter the price, pick your state, and get the tax amount and total instantly using 2026 state and average local rates. Sales Tax Calculator Price before tax + your state = tax and total Price before tax ($) State Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming Include local tax? Yes – use state average local rate No – state rate only Or custom total rate (%) Calculate Rates are 2026 state rates and average local rates from Tax Foundation data. Your city or county rate may diffe...

Find your exact age today – or on any date – in years, months and days, plus total weeks, days, hours and how long until your next birthday. Age Calculator Date of birth and the date to calculate age on Date of birth Age on date (blank = today) Calculate How this age calculator works It counts full years from your date of birth to the chosen date, then the remaining full months, then the leftover days – the same way people normally state an age. Leap years and month lengths are handled automatically. Leave the second date blank to use today. Common uses Checking exact age for school enrolment, sports age groups, retirement or Social Security eligibility, legal documents, or simply finding out how many days you have been alive and on which weekday you were born. How many days old am I? Multiply your age in years by 365.25 for a quick estimate, or use the calculator for the exact figure. A 30-year-old has lived roughly 10,957 days. Age on other planets Fun fact: a year on Mar...

Calculate your grade point average on the standard 4.0 scale. Enter letter grades and credit hours for up to 8 classes, with optional Honors/AP weighting for high school students. GPA Calculator Enter grade and credits for each class (leave unused rows blank) Class Credits Grade / type Calculate GPA Weighted GPA adds +0.5 for Honors and +1.0 for AP/IB classes (a common scale – your school may differ). How GPA is calculated Each letter grade is converted to grade points (A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0, with +/− steps of 0.3). Multiply each class's points by its credit hours, add them up, and divide by the total credits. GPA = Σ(grade points × credits) ÷ Σ credits. Weighted vs unweighted GPA An unweighted GPA tops out at 4.0. A weighted GPA gives extra points for harder classes – typically +0.5 for Honors and +1.0 for AP or IB – so it can exceed 4.0 (a 5.0 scale). Colleges usually look at both, and many recalculate GPA using their own method. What is a good GPA?...

Calculate your Body Mass Index from your height and weight in US units (feet, inches, pounds) or metric (cm, kg), and see which BMI category you fall into and your healthy weight range. BMI Calculator Height and weight – US or metric units Units US (feet/inches, pounds) Metric (cm, kg) Height – feet Height – inches (or cm for metric) Weight (lbs, or kg for metric) Calculate BMI is a screening tool for adults 20+, not a diagnosis. It does not account for muscle mass, bone density or body composition. Talk to a doctor about your health. What is BMI? Body Mass Index is a simple number calculated from your weight and height that is used by the CDC and WHO to screen for weight categories that may lead to health problems. It is the same for men and women. BMI formula Metric: BMI = weight (kg) ÷ height (m)². US units: BMI = 703 × weight (lb) ÷ height (in)². For example, someone 5'9" (69 inches) weighing 170 lb has a BMI of 703 × 170 ÷ 4,761 ≈ 25.1. BMI categories for adul...

See how your savings or investments grow with compound interest. Enter a starting amount, monthly contribution, interest rate and years to see the future value and total interest earned. Compound Interest Calculator Starting balance, contributions, rate and time Initial investment ($) Monthly contribution ($) Annual interest rate (%) Years Compounding Monthly Quarterly Yearly Daily Calculate Assumes contributions are made at the start of each month and returns are constant. Real investment returns vary year to year. What is compound interest? Compound interest is interest earned on both your original money and on the interest already added to it. Because the growth builds on itself, balances grow faster the longer you leave them – Albert Einstein reportedly called it the eighth wonder of the world. Compound interest formula A = P(1 + r/n) nt , where P is the principal, r the annual rate as a decimal, n the number of compounding periods per year and t the years. With regular ...

Calculate your weekly pay with overtime. Enter your hourly rate and hours worked to see regular pay, time-and-a-half overtime, optional double time and the total. Overtime Pay Calculator Hourly rate + hours this week Regular hourly rate ($) Total hours worked this week Overtime starts after (hours) Overtime multiplier Double-time hours (optional) Calculate Gross pay before taxes. Federal law (FLSA) requires 1.5× pay after 40 hours per week for non-exempt employees; some states such as California also require daily overtime. How overtime pay works in the United States Under the federal Fair Labor Standards Act, non-exempt employees must be paid at least 1.5 times their regular rate ("time and a half") for every hour over 40 in a workweek. Some states go further: California requires time and a half after 8 hours in a day and double time after 12 hours in a day or after 8 hours on the seventh consecutive day; Alaska, Nevada and Colorado also have daily overtime rules. ...

Convert an hourly wage to yearly, monthly, biweekly and weekly pay – or go the other way and turn an annual salary into an hourly rate. Adjust hours per week and weeks per year. Hourly ↔ Salary Converter Enter either an hourly wage or an annual salary I want to convert Hourly wage → Salary Annual salary → Hourly Amount ($) Hours per week Weeks worked per year Calculate Figures are gross (before taxes). Use 50 weeks if you take two weeks of unpaid vacation. How to convert hourly pay to an annual salary Annual salary = Hourly rate × Hours per week × Weeks per year. With a standard 40-hour week and 52 weeks, that is Hourly × 2,080. So $25 per hour is $52,000 per year, $20 per hour is $41,600, and $30 per hour is $62,400. How to convert a salary to an hourly rate Hourly rate = Annual salary ÷ 2,080. A $60,000 salary is about $28.85 per hour; $75,000 is about $36.06; $100,000 is about $48.08. Quick reference (40 hrs/week, 52 weeks) $15/hr = $31,200 · $18/hr = $37,440 · $20/hr = ...

Calculate your monthly car payment including sales tax, down payment and trade-in value. See total interest and the true total cost of the vehicle. Auto Loan Calculator Vehicle price, down payment, trade-in, rate and term Vehicle price ($) Down payment ($) Trade-in value ($) Sales tax rate (%) Interest rate (APR %) Loan term 36 months 48 months 60 months 72 months 84 months Calculate Most states charge sales tax on the price after the trade-in is deducted; this calculator does the same. Check your state rules. How the car payment is calculated Amount financed = Vehicle price + Sales tax − Down payment − Trade-in. The monthly payment then uses the standard loan formula with the APR divided by 12 and the number of months in the term. Example A $32,000 car with 7% sales tax, $4,000 down and no trade-in financed over 60 months at 7.5% APR gives a monthly payment of about $604 and total interest of roughly $6,000. What is a good APR for a car loan in 2026? Rates depend heavily o...

Estimate your monthly mortgage payment including principal, interest, property tax, home insurance and PMI. See total interest over the life of the loan. Mortgage Calculator Home price, down payment, rate and term Home price ($) Down payment ($) Interest rate (% per year) Loan term 30 years 20 years 15 years 10 years Property tax ($ per year) Home insurance ($ per year) HOA fees ($ per month) PMI (% per year, if down Calculate Estimate only. Your lender's figures may differ. PMI is applied automatically when the down payment is under 20%. How your monthly mortgage payment is calculated The principal and interest part uses the standard amortization formula: M = P × r(1+r) n ÷ ((1+r) n − 1), where P is the loan amount, r is the monthly interest rate (annual rate ÷ 12) and n is the number of monthly payments (years × 12). Property tax, homeowners insurance, HOA dues and PMI are then added to give the full monthly cost (often called PITI). Example A $350,000 home with $70,...