Weekly Hours Calculator
Calculate your total weekly work hours, automatically split regular and overtime hours past 40, and estimate your gross weekly earnings.
Quick Answer: Weekly Hours & Overtime Formula
Weekly work hours are calculated by summing daily net hours worked across Monday through Sunday. Overtime hours are calculated for hours worked beyond the 40-hour weekly threshold:
• Example: Five 9-hour workdays = 45.0 total hours (40.0 regular hours + 5.0 overtime hours at 1.5x pay).
Total Work Hours
35:00
35.00 decimal hrs
Regular Hours
35:00
35.00 decimal hrs
Overtime Hours
0:00
0.00 decimal hrs
Days Worked
5 days
Avg: 7:00/day (7.00h)
Weekly overtime threshold: 40 hours/week (Multiplier: 1.5x). Based on standard US FLSA rules; specific state or contract rules (e.g. CA daily overtime) may apply.
Weekly Overtime Worked Example
Scenario: 45-Hour Standard Workweek
- • Daily Schedule: 9.0 hours per day (Monday to Friday)
- • Total Weekly Hours: 5 × 9.0 = 45.0 hours
- • Regular Hours (Threshold 40h): 40.0 hours
- • Overtime Hours: 45.0 − 40.0 = 5.0 hours
- • Pay at $25.00/hr: Regular (40 × $25 = $1,000) + Overtime (5 × $37.50 = $187.50) = $1,187.50 Gross Pay
Federal Weekly Overtime Regulations (FLSA)
Under the US Fair Labor Standards Act (FLSA), weekly hours calculation is governed by federal statute:
- 40-Hour Workweek: Under 29 U.S.C. § 207(a)(1), employers must pay overtime at not less than time-and-a-half (1.5x) for hours exceeding 40 during any fixed workweek.
- Averaging Hours Prohibited: An employer cannot average hours over two or more weeks. Each workweek stands alone for overtime computation purposes.
Frequently Asked Questions
How do I calculate total weekly work hours?
Add together the net hours worked across each day of your workweek (Monday through Sunday). For example, five 8-hour shifts equal 40.0 total weekly hours. If daily shifts include unpaid meal breaks, deduct break minutes before summing.
How does the 40-hour overtime rule work?
Under the federal Fair Labor Standards Act (FLSA 29 U.S.C. § 207), covered non-exempt employees must be paid overtime at 1.5 times their regular rate for any hours worked beyond 40 in a single 7-day workweek. Hours up to 40 are regular hours; hours over 40 are overtime hours.
Can I customize the weekly overtime threshold?
Yes. While 40 hours is standard under federal law, you can adjust the weekly threshold (e.g. 35 or 38 hours) and the overtime multiplier (e.g. 1.5x or 2.0x) in the calculator's Advanced Settings to match collective bargaining agreements or international standards.
What if my work shift crosses midnight into the next day?
Shiftfy automatically recognizes overnight shifts. When your end time is earlier than your start time (e.g., 22:00 to 06:00), the calculator accurately records the shift duration and credits the hours to that workday.
How do I convert weekly hours and minutes to decimal hours for payroll?
Divide the minute portion of your weekly total by 60. For example, 38 hours and 45 minutes converts to 38 + (45 ÷ 60) = 38.75 decimal hours. The calculator displays decimal hours automatically.
Related Time & Hours Calculators
Manage your schedule, breaks, and payroll with specialized Shiftfy tools: