Working Hours per Month
Free Working Hours per Month calculator with clear step-by-step results.
About Working Hours per Month
Contracted monthly hours come from the weekly figure times 52.14 divided by twelve, which is why a 37.5 hour week averages about 163 hours a month rather than 150. Deducting paid leave and public holidays gives hours actually worked - the correct denominator for an effective hourly rate.
Formulas
Contracted monthly hours
Monthly = weekly hours x 52.1429 / 12
Effective hourly rate
Rate = annual salary / (annual hours - (leave + holidays) x hours per day)
Worked example
With the default values below, Working Hours per Month returns Contracted hours per month of 162.95. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Contracted hours per weekaccepts 1–80 h
- 37.5 h
- Working days per weekaccepts 1–7
- 5
- Public holidays per yearaccepts 0–40
- 8
- Annual leave daysaccepts 0–60
- 25
- Annual salaryminimum 0 $
- 54,000 $
Results
- Contracted hours per month
- 162.95 h
- Hours actually worked per month
- 142.32 h
- Hours worked per year
- 1,707.9 h
- Effective rate per hour worked
- $31.62
Step by step
- 1Values used
- 2Contracted monthly hours
- 3Effective hourly rate
- 4Contracted hours per month= 162.95 h
- 5Hours actually worked per month= 142.32 h
- 6Hours worked per year= 1,707.9 h
- 7Effective rate per hour worked= $31.62
Assumptions and limits
- The result is derived only from the 5 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax or fees or charges into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
Why 52.1429 weeks rather than 52?
A year is 365.25 days, or 52.1429 weeks. Using 52 understates annual hours by about 0.3%, which matters when converting salary to an hourly rate.
Which figure should a contractor quote against?
Hours actually worked. Comparing a salary against contracted hours ignores that paid leave and holidays are part of the package a contractor does not receive.