How Many Hours Are in a Month?
Calculate the exact number of hours in any month: 672 hrs (28-day), 720 hrs (30-day), 744 hrs (31-day), or 730.5 hours average. Perfect for payroll and billing.
1 month in All Units
Monthly Hour Variations Across the Calendar
Because calendar months vary from 28 to 31 days, the number of hours in a month ranges from 672 hours to 744 hours. On average across the 12 Gregorian calendar months, a month contains approximately 730.5 hours (or 730 hours and 29 minutes in a leap year).
For payroll, billing, and project management, many organizations use an average of 173.33 billable work hours per month based on 2,080 standard annual work hours divided by 12 months.
Step-by-Step Calculation
- 28-day month (February common year): 28 × 24 = 672 hours.
- 29-day month (February leap year): 29 × 24 = 696 hours.
- 30-day month (April, June, Sept, Nov): 30 × 24 = 720 hours.
- 31-day month (Jan, Mar, May, Jul, Aug, Oct, Dec): 31 × 24 = 744 hours.
- Average month (365.25 days ÷ 12): 30.4375 × 24 = 730.5 hours.
Frequently Asked Questions
How many hours are in an average month?
An average calendar month contains 730.5 hours (30.4375 days × 24 hours).
How many hours are in February, April, and December?
February has 672 hours (696 in leap years); 30-day months like April have 720 hours; 31-day months like December have 744 hours.
How many working hours are in a typical month?
A standard 40-hour work week yields an average of 173.33 work hours per month (2,080 annual hours ÷ 12).