School Days Calculator

Count school days between two dates, estimate school days remaining, subtract weekends, holidays, breaks, teacher days, and absences, and calculate total instructional days for a school year, semester, term, or custom date range.

Calculate School Days

School Days = Weekdays Between Dates − Holidays − Break Days − Teacher Workdays.
Your result will appear here.

How the school days calculator works

School days between dates:
Enter a start date and end date to count weekdays, then subtract holidays, breaks, teacher workdays, and emergency closures.

School days remaining:
Enter the current date and school end date to estimate how many school days are left.

School year days:
Use the full school year start and end dates to estimate total instructional days.

Attendance days:
Subtract student absences from completed school days to estimate days attended.

Why use a school days calculator?

A school days calculator helps estimate instructional days, attendance days, days remaining, and calendar requirements.

It can help with school planning, homeschool calendars, attendance tracking, semester planning, break planning, make-up days, and checking whether a school calendar meets a required number of days.

What your result means

Your result shows total calendar days, weekday days, estimated school days, school days remaining, completed school days, student days attended, absence count, no-school days, break days, teacher days, emergency days, and surplus or shortage compared with the required school days.

School days calculator formulas

Frequently asked questions

How do you calculate school days between two dates?

Count the weekdays between the start and end dates, then subtract holidays, breaks, teacher workdays, and other no-school days.

Do weekends count as school days?

Usually no. Most school calendars use Monday through Friday, but the calculator also includes options for 4-day, 6-day, or custom school weeks.

How many school days are in a year?

Many school years are around 170 to 190 instructional days, but the exact number depends on the school, district, state, country, and calendar.

Can this calculate school days remaining?

Yes. Enter the current date and the school year end date to estimate how many school days are left after subtracting no-school days.