Everyday Tools
A free collection of everyday online tools: Korean age calculator, business day counter, random ladder picker, lottery number generator, Chinese zodiac, bill splitter and world clock.
Everyday Tools is a free set of browser-based utilities you can use instantly with no sign-up or install: calculate Korean age, count business days, draw a random ladder, generate lottery numbers, find your Chinese zodiac, split a bill and compare world clocks.
Every calculation runs entirely in your browser; your input is never sent to or stored on a server.
Everyday tools
Korean Age Calculator
Find your Korean (international/man) age and Chinese zodiac sign from your date of birth and a reference date.
Business Day Counter
Count working days between two dates, excluding weekends and the holidays you enter.
Ladder Game (Random Picker)
Enter players and outcomes to draw a random ladder and pick fairly, ghost-leg style.
Lottery Number Generator
Pick 6 unique numbers from 1-45 using a cryptographically secure random source, for multiple lines at once.
Chinese Zodiac & Star Sign
Get your Chinese zodiac animal and Western star sign from your date of birth in one click.
Bill Splitter (Dutch Pay)
Split a total evenly per person, with optional individual extras for a fair settlement.
World Clock & Time Difference
See the current time in major cities and the time difference between any two of them, in real time.
Guides
Why use Everyday Tools
- Free & install-free — use everything right in your browser, no account or app required.
- No data collected — every calculation runs in your browser and your input is never sent to a server.
- Accurate date math — age, business days and time differences are computed on a UTC and Intl basis.
- Secure randomness — lottery numbers use the browser's cryptographic random generator for fairness.
All results are for reference only. For ages or dates with legal effect, always confirm against official sources.
Last updated: 2026-06-25