BMI, weight category, and healthy weight range

Estimate calories burned at rest

Calculate heat index from temperature and humidity

Find when to take a pregnancy test after ovulation

Estimate BAC, standard drinks, and time to sober up

Convert PM2.5 or AQI into cigarette-equivalent exposure

Calculate calories for your custom Subway sandwich

Calculate wet-bulb temperature from air temperature and humidity

Estimate body fat %, fat mass, lean mass, and target weight

Find the average of a list of numbers

Calculate fractions with step-by-step solutions

Estimate your U.S. federal refund or amount owed

Monthly payment, amortization schedule, and extra payment savings

Calculate percent increase, percent decrease, and change amount

Calculate the 401(k) contribution needed per paycheck

Estimate eBay seller fees, payout, profit, and target selling price

Calculate DTI and maximum monthly debt at a target ratio

Calculate overtime rate, overtime pay, and weekly earnings

Calculate car payments with trade-in, taxes, fees, and loan-term comparison

Project Roth IRA growth and compare starting now vs. 5 years later

Calculate net worth, liquid net worth, and debt-to-asset ratio

Compare refinance payments, break-even time, and lifetime savings

Convert cm, inches, and feet-inches

Calculate CFM or duct velocity for round and rectangular ducts

Convert hours and minutes to decimal time

Convert pixels to centimeters or centimeters to pixels

Convert pixels and millimeters using a reference scale or PPI/DPI

Calculate the elapsed time between two times or dates

Measure sound level with your microphone

Encode text to Morse code or decode Morse code to text

Calculate progress toward a target as a percentage

Calculate book spine width from page count and paper type

Calculate your Sun, Moon, Rising sign, and houses

Convert time zones and generate Discord timestamp tags

Convert headlines to title case and compare style guides

Calculate dew point from temperature and humidity

Convert raw airline PNR text into a readable itinerary

Find the weekday for any date and see the calculation method

Calculate your Major Arcana birth card from your date of birth

Calculate days, weeks, months, weekdays, and Excel formulas

Convert UTC and local time zones with DST-aware offsets

Estimate VDOT from a recent race time

Calculate parlay payout, profit, implied probability, and EV

Generate strong random passwords with custom length and character types

Convert text, Unicode code points, JS escapes, and HTML entities

Create and download UPC, EAN, Code 128, Code 39, and ITF-14 barcodes

Generate single or bulk UUIDs in v1, v4, and v7 formats

Generate secure random API keys, tokens, and secret strings

Encode or decode Base64 text, files, images, and Base64URL

Calculate winning percentage from wins, losses, ties, and total games

Calculate IRON NEST elevation from distance and powder charges