Converting Bi-Weekly Time Card Totals to Annual Hours
October 23, 2026
Converting a typical bi-weekly time card total to an estimated annual hours figure uses 26 bi-weekly pay periods per year (52 weeks ÷ 2), distinct from a semi-monthly schedule's 24 periods — mixing up the two period counts is a common source of error when estimating annual totals.
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Open the Bi-Weekly Time Card Calculator →Worked Example
An employee typically works 80 hours per bi-weekly period (40 hours/week, no overtime):
- Annual hours estimate: 80 × 26 = 2,080 hours/year
Why 26, Not 24
Bi-weekly pay happens every two weeks regardless of the calendar month, producing 26 pay periods across a 52-week year — a semi-monthly schedule (paid twice per calendar month, such as the 1st and 15th) produces 24 periods instead, a completely different schedule that happens to sound similar. Using 24 for a bi-weekly estimate would understate annual hours.
Frequently Asked Questions
How many bi-weekly pay periods are in a year?
26 (52 weeks ÷ 2).
What's the annual hours estimate for 80 hours per bi-weekly period?
2,080 hours/year (80 × 26).
Why is this different from a semi-monthly schedule?
Semi-monthly pay (twice per calendar month) produces 24 periods per year, not 26 — a different schedule from bi-weekly despite sounding similar.
What's the risk of using 24 instead of 26 for a bi-weekly estimate?
It would understate the actual annual hours or pay, since bi-weekly schedules have 26 periods, not 24.