Everyday Calculators

Calculate tip amount and total bill, with options to split between people.

Calculate sale price, savings amount, and discount percentage.

Calculate exact age in years, months, and days from a birth date.

Calculate the number of days, weeks, and months between two dates.

Calculate fuel economy in MPG or L/100km from distance and fuel used.

Calculate total fuel cost for a trip based on distance, fuel economy, and gas price.

Calculate your GPA from grades and credit hours.

Convert between cups, tablespoons, teaspoons, milliliters, ounces, and grams.

Convert time between world time zones with offset display.

Convert shoe sizes between US, UK, EU, and CM systems.

Calculate your weighted average grade and letter grade from assignments.

Estimate your monthly electricity bill from appliance wattage and usage.

Estimate the cost of moving based on distance, home size, and extras.

Calculate screen width, height, and PPI from diagonal size and aspect ratio.

Calculate file download time or required speed from file size and bandwidth.

Compare unit prices of two products to find the better deal.

Set a countdown alarm with sound alert and screen flash when time expires.

Set an alarm for a specific time and day with sound alert and screen flash.

Precision stopwatch with millisecond accuracy, lap time recording, and split time tracking.

Focus timer with customizable work and break intervals, auto-transitions, and sound alerts.

Read any text aloud with adjustable voice, speed, pitch, and volume using browser speech synthesis.

Convert temperatures between Celsius, Fahrenheit, and Kelvin scales instantly with formulas shown.

Convert length between mm, cm, m, km, inches, feet, yards, and miles instantly.

Convert weight between mg, g, kg, tonnes, ounces, pounds, and stone instantly.

Convert speed between m/s, km/h, mph, knots, and ft/s instantly.

Convert cups to mL, liters, fluid ounces, tablespoons, and teaspoons instantly.

Convert teaspoons to mL, cups, tablespoons, fluid ounces, and liters instantly.

Convert tablespoons to mL, cups, teaspoons, fluid ounces, and liters instantly.

Convert volume between cubic feet, cubic meters, cubic yards, liters, and gallons.

Translate text to Morse code and Morse code to text with audio playback of dots and dashes.

Track daily calorie intake by time of day. Log meals, view daily summaries, and browse history.

Split the bill evenly among friends with tip and tax included.

Plan your wedding budget with a detailed cost breakdown by category.

Plan your trip budget with daily and total cost estimates by category.

Estimate the true cost of owning a dog or cat with lifetime expense breakdowns.

Calculate electricity usage and cost for each appliance with monthly breakdowns.

Track all your subscriptions and see the total monthly and annual cost.

Generate citations in APA 7th, MLA 9th, and Chicago formats for books, journals, and websites.

Compare two texts for similarity using 3-gram Jaccard analysis.

Calculate the grade you need on your final exam to achieve your desired course grade.

Plan your college budget by calculating total costs, financial aid, and funding gaps.

Plan your weekly study schedule based on course credits and difficulty levels.

Side-by-side text diff comparison tool showing additions, deletions, and unchanged lines.

Convert SQL queries to MongoDB query syntax with explanations.

Convert Tailwind utility classes to equivalent plain CSS properties.

Build GraphQL queries visually from type, fields, and arguments.

Calculate requests per second, daily quota usage, and time until reset.

Generate docker-compose.yml from service selections like PostgreSQL, Redis, Nginx.

Generate conventional commit messages from type, scope, and description.

Calculate the next semantic version from current version and change type.

Check WCAG 2.1 AA/AAA contrast ratio between foreground and background colors.

Generate HTML email signatures from name, title, company, and contact info.

Find overlapping business hours across multiple timezones.

Estimate annual CO2 footprint from driving, electricity, flights, and diet.

Create invoices with line items, tax calculation, and downloadable text output.

Generate .htaccess rules for Apache servers. HTTPS redirects, compression, caching, security headers, and more.

Calculate the right tip for your bartender instantly. Whether tipping per drink or on a full tab, adjust tip percentage and split the bill —...

Calculate business days between two dates. See weekdays, weekend days, and calendar days. Excludes Saturdays and Sundays automatically for a...

Calculate the final price on clearance items after additional markdowns. See your savings from clearance discounts and compare deals — free...

Calculate cost per day, per week, per month, and per year from any total cost and time period. Perfect for subscriptions, rentals, and vacat...

Calculate cost per hour and cost per minute from any total cost and time period. Ideal for parking, rentals, freelance services, and hourly...

Calculate the cost per kilometer and cost per mile of driving. Enter distance, fuel used, and fuel price to find your exact driving costs in...

Calculate vehicle cost per mile from fuel, insurance, maintenance, and depreciation costs. See per-mile, per-km, and annual cost breakdowns...

Calculate printing cost per page from cartridge price and page yield. Estimate monthly and yearly printing costs with pages per month projec...

Split any cost evenly among a group. Enter total cost, number of people, and optional tip and tax to calculate each person's share instantly...

Calculate the cost per serving for any recipe. Enter total ingredient cost and number of servings, with optional markup for selling price an...

Calculate the cost per wear for any clothing item or accessory. Compare against a cheaper alternative to find which is the better value over...

Calculate your savings from coupon discounts instantly. See the final price after applying a coupon or find the coupon percentage between tw...

Calculate your data plan's cost per GB, overage charges, unused data value, and effective cost. Optimize your mobile data plan spending.

Calculate how many days, weeks, months, hours, and minutes until any date. See business days remaining and countdown to events, deadlines, a...

Calculate the right tip for food delivery, pizza delivery, or grocery delivery instantly. Adjust tip percentage and split the cost — free an...

Calculate the fuel cost for any trip. Enter distance, fuel efficiency (MPG or L/100km), and fuel price to find trip cost, fuel needed, and c...

Calculate the right tip for your hairstylist, colorist, or spa service instantly. Adjust tip percentage and split between multiple services...

Validate JSON data online. Check syntax, view structure analysis with key count, nesting depth, and formatted output.

Calculate price per liter, per mL, per gallon, and per fluid ounce from any volume and price. Supports liters, milliliters, gallons, and flu...

Compare prices per kilogram, per pound, per 100g, and per gram. Enter any product price and weight to find the best value instantly.

Convert regular expressions to plain English explanations. Understand what each part of a regex pattern means.

Calculate rent per square meter, per square foot, and annual cost. Compare rental value across different apartments and spaces instantly.

Calculate the perfect restaurant tip instantly. Adjust tip percentage for dine-in, buffet, or takeout and split the bill among your group —...

Calculate the final sale price after any discount percentage. See your savings instantly and compare deals — free and easy to use.

Calculate shift duration from start and end times. Handles overnight shifts, break deductions, and shows total hours, paid hours, and minute...

Calculate hours worked and gross pay from clock-in and clock-out times. Deduct breaks, enter your hourly rate, and see daily and weekly pay...

Calculate your typing or reading speed in words per minute. Enter word count and time to get WPM, plus time estimates for common document le...

Calculate required work breaks based on shift length. See rest breaks, meal breaks, total break time, net work time, and a detailed break sc...

Calculate total work hours between two dates. Enter start date, end date, hours per day, and days per week to get total work hours, work day...

Convert kilowatt-hours to electricity cost. Enter your kWh usage and rate to see daily, monthly, and yearly electricity costs instantly.