Dates & everyday

From file tasks to everyday calculations, find tools by what you need to do.

Dates & everyday

Date calculator

Days, weeks, business days and years/months/days between two dates, plus a date N days/weeks/months/years from any date.

Dates & everyday

Age calculator

Exact age in years, months and days at any date, days until your next birthday and total days lived.

Dates & everyday

Countdown calculator

Days until (or since) any date, plus the dates of your 100th, 365th, 1000th day and yearly anniversaries.

Dates & everyday

Business days calculator

Working days between two dates excluding weekends and the 11 federal holidays, and the date N business days from any date.

Dates & everyday

Day of the week calculator

Find the weekday of any date, see which weekday the same day-of-month falls on for all 12 months, and a 10-year view of a date's weekday.

Dates & everyday

Hours calculator

Enter clock-in, clock-out and break for each day to get daily hours and the total in h:mm and decimal (7.5 h). Overnight shifts supported; multiply by an hourly rate.

Dates & everyday

Percentage calculator

Five calculations on one page: X% of Y, X is what % of Y, percent change, add/subtract a percentage (and reverse), percentage-point difference.

Dates & everyday

US federal holiday and long weekend planner

Every US federal holiday with the date offices actually close, the long weekends that form on their own, and the best places to spend 1 to 3 days of leave. Computed from 5 U.S.C. 6103, so any year works.

Dates & everyday

Discount calculator

Sale price from list price and %, discount rate from two prices, the real rate of stacked discounts like 30% + 20%, and percent-off vs. coupon order.

Dates & everyday

Unit converter

Square meters ↔ square feet, acres, hectares and Korean pyeong; meters ↔ feet and miles; kilograms ↔ pounds and ounces; liters ↔ gallons. Exact international factors with sources.