Everyday
Health calculators like BMI and sleep, car costs, lookups, timers and screen tests, plus quick mini games. (49 tools)
Utilities
Workout Timer
Interval work/rest
Countdown Timer
Time until any date in UTC (shareable)
Server Time
Accurate UTC clock with milliseconds
Dimensional Weight Calculator
volumetric & billable weight
Keyboard Tester
key press & ghosting
Solid Color Screen
13 full screen colours, PNG export
White Screen
spot smudges, selfie light
Black Screen
backlight bleed, glossy dust
Refresh Rate Test
check your Hz
Sound Level Meter
Measure noise in decibels (dB)
Antipode Calculator
Find the opposite side of Earth
Dead Pixel Test
Find faulty screen pixels
Stopwatch
Lap timer to hundredths of a second
Random Number
Generate random numbers in a range
QR Code Generator
Logo, colors, PNG/SVG download
Online Alarm & Timer
6 sounds, countdown timer
My IP Address & Device Info
IP, browser, OS, screen info
Lookup & Data
Weather
Health
Dog & Cat Age Calculator
pet years to human years
Sleep Calculator
bedtime & wake-up cycles
Child Height Predictor
adult height from parents
Baby Age Calculator
days, weeks, months, milestones
BMR Calculator
basal metabolic rate, calories
BMI Calculator
Body mass index from height and weight
Body Fat Calculator
U.S. Navy tape method
One Rep Max Calculator
1RM and % chart
Running Pace Calculator
Marathon pace, splits & predictions
Infant Height/Weight
Peer average by month
Height/Weight by Age
Korean average by age group
Due Date Calculator
Estimate due date from last period, trimester timeline
Ovulation Calculator
Estimate ovulation date and fertile window
Car
Fun & Games
Star Sign Calculator
zodiac sign by birthday
Birthstone Finder
stones & meanings by month
Wheel Spinner
Random picker
2048 Game
tile merge puzzle
Loudness Challenge
Who can make the loudest sound?
Reaction Time Test
Measure your reflexes in ms
Click Speed Test
Clicks per second (CPS)
Aim Test
Click accuracy trainer
Memory Test
Sequence memory game
Schulte Table
Number order focus game
Color Discrimination Test
Spot the different color
Number Memory
How many digits can you recall?