01
Hourly pay
Turn a yearly salary into an hourly estimate.
ESTIMATED HOURLY$25.00
NO SIGN-UP · ALWAYS FREE
Life’s little math,
done beautifully.
Fast, friendly calculators for money, time, and everyday decisions.
YOUR LOCAL TIME—Loading date…
Try a calculator ↓QUICK NUMBERS FOR SCHOOLS
Clear math tools students can use independently.
Free, fast, and account-free helpers for classwork, tutoring, homework checks, and classroom resource pages.
Open school tools →QUICK NUMBERS FOR RESTAURANTS
Everyday numbers for the dining room and kitchen.
Split bills, scale recipes, check food cost, and understand labor cost without spreadsheets or sign-ups.
Open restaurant tools →QUICK NUMBERS FOR CRYPTO
Understand the numbers behind a crypto trade.
Estimate profit or loss, average a DCA entry, and compare market capitalization using prices you enter yourself. No live-price hype and no financial advice.
Open crypto tools →FEATURED TOOLSplit the bill,
Split the bill,
keep the friendship.
Restaurant math without the awkward table-side debate.
EACH PERSON PAYS$33.60
$5.60 tip each · $100.80 total
02
Sale price
See the real price before you reach the register.
YOU PAY$90.00
03
Percentage finder
Quick answers for school, work, and everyday decisions.
15%of 20030
40is what % of 160?25%
POPULAR RIGHT NOW
Start with a favorite.
THE TOOLBOX22 reasons to
22 reasons to
bookmark us.
Every calculator has its own page—easy for families, schools, and businesses to find, save, and share.
01 · Everyday
Tip & split
Calculate a tip, total bill, and equal share for every person at the table.
Open tool →02 · WorkHourly pay
Convert an annual salary into hourly, weekly, and monthly pay estimates.
Open tool →03 · WorkOvertime pay
Estimate regular wages, overtime wages, and total weekly gross pay.
Open tool →04 · ShoppingSale price
Find the final sale price and exactly how much a discount saves.
Open tool →05 · MathPercentages
Calculate a percentage of a number or find what percentage one number is of another.
Open tool →06 · MoneyLoan payment
Estimate a fixed monthly loan payment and total interest over time.
Open tool →07 · MoneySavings goal
Estimate how long it may take to reach a savings target with monthly contributions.
Open tool →08 · TimeAge
Find an approximate age in years, months, days, and total days.
Open tool →09 · TimeDate difference
Count the days and approximate weeks between any two dates.
Open tool →10 · ConversionsUnit converter
Convert common length, weight, temperature, and volume measurements instantly.
Open tool →11 · MoneyCompound interest
Estimate how savings may grow with interest and regular monthly contributions.
Open tool →12 · EverydayRandom number
Generate a whole number within any range for games, drawings, and classroom activities.
Open tool →13 · CryptoCrypto profit
Estimate crypto profit, loss, ending value, and percentage return from your own prices.
Open tool →14 · CryptoCrypto DCA
Combine two crypto purchases to estimate your average entry price and total holdings.
Open tool →15 · CryptoCrypto market cap
Estimate a cryptocurrency market capitalization from coin price and circulating supply.
Open tool →16 · HomeCleaning cost
Create a simple planning estimate based on home size, service type, and frequency.
Open tool →17 · SchoolGPA
Estimate a grade-point average from course grades and credit hours.
Open tool →18 · SchoolFractions
Turn a fraction into a decimal and percentage instantly.
Open tool →19 · SchoolGeometry
Find the area and perimeter of a rectangle for classwork or planning.
Open tool →20 · RestaurantFood cost
Measure ingredient cost as a percentage of a menu item's selling price.
Open tool →21 · RestaurantRecipe scaling
Scale an ingredient amount up or down for a different number of servings.
Open tool →22 · RestaurantLabor cost
Estimate payroll as a percentage of restaurant sales for a shift or period.
Open tool →WHY QUICK NUMBERS?Useful enough
Useful enough
to bookmark.
Answers instantly
Every calculator updates while you move the sliders. No submit buttons and no waiting.
Your numbers stay private
Calculations happen in your browser. We don’t ask for an account or personal details.
Made to make sense
Clear labels and useful breakdowns help you understand the answer, not just copy it.
Small calculations. Smarter decisions.
Back to top ↑How to split a restaurant bill fairly
Start with the bill before tip, choose the percentage you want to leave, then divide the total by the number of people. Quick Numbers does all three steps at once.
- Enter the bill. Use the amount before the tip.
- Choose a tip. Local customs vary, so select what feels right.
- Choose the group size. The result shows each person’s equal share.
Tip: If people ordered very different amounts, calculate each person’s food and tip separately for a fairer result.
Privacy, in plain English
The calculators work directly in your browser. Quick Numbers does not create accounts or save the numbers you enter. Advertising partners may use cookies or similar technology to display and measure ads. Read our full privacy policy for details.