일상 도구
날짜, 시간, 여행 예산, 팁, 환율 등 일상생활에 유용한 계산기입니다.
Age Calculator
Calculate your exact age in years, months and days from your date of birth, plus total days, weeks, months lived and days until your next birthday.
Date Calculator
Calculate the number of days, weeks and business days between two dates, or add and subtract days from a date to find the resulting date and weekday.
Time Calculator
Add or subtract times and calculate the duration between two clock times in HH:MM format, with results in hours-minutes, total minutes and decimal hours.
Time Zone Converter
Convert a clock time between 17 major world time zones using IANA time zone data, with daylight saving handled automatically and the offset shown.
Currency Converter
Convert any amount between currencies using an exchange rate you supply. Shows the converted amount and inverse rate, and explains mid-market vs bank rates.
Travel Budget Calculator
Estimate your total trip cost from daily accommodation, food, activities and transport plus flights. Includes per-day, per-person and 15% buffer figures.
Percent Off Calculator
Calculate the sale price after one or two stacked discounts. Stacked discounts multiply, not add — find your true effective discount and savings.
Tip Calculator
Calculate the tip amount, total bill, and cost per person for any party size. Includes an international tipping customs reference table.
Discount Calculator
Calculate the final price after a percentage discount plus optional sales tax. See how much you save. Handles stacked tax-and-discount order correctly.