Working day cost calculator
What one working day and one working hour are worth at your salary.
Fill in the fields and the result will appear here automatically.
Turns a monthly salary into the price of a day and of an hour — a figure that makes a day off, an hour of overtime and the daily commute all comparable. The number of working days and the length of a shift stay ordinary fields with sensible defaults: they differ between months and between schedules, so no working calendar is baked in to decide for you.
How it works
Formula and logic
The salary is divided by the number of working days to give the cost of a day; dividing that by the shift length gives the cost of an hour. Both follow the figures you entered — no monthly norm is substituted behind your back. Days are a whole number from 1 to 31; shift hours may be fractional above 0 and up to 24. Monthly hours = days × hours without whole-hour rounding. This averages the entered salary across chosen days; it does not calculate deductions, time-off pay, overtime or the employer total cost.
Example
A salary of 100 000 across 21 working days of eight hours gives 4 761.90 per day and 595.24 per hour. Pay 1575, 21 days and 7.5-hour shifts give 75 per day, 10 per hour and 157.5 monthly hours. Fractional time is preserved; 21.5 working days is rejected.
Fields and units
- Monthly salary — $
- Working days per month — working days/month
- Hours per working day — h/working day
How to use
- — Enter the monthly salary.
- — Give the number of working days this month and the shift length.
- — Read the cost of a day and of an hour.
Method and limitations
- Calculation method
- Formula and logic
- Data or methodology source
- DOL, United States: FLSA coverage, exemptions and regular-rate basis; not a worldwide overtime rule
- Limitation
- Average time cost uses the entered salary and chosen schedule. It is not payroll, absence pay or total employer cost; taxes and contributions are not added.
FAQ
Why must the number of working days be entered by hand?
Because it changes from month to month and from schedule to schedule. Fixing one number for every case would present a convenient assumption as a fact.
Gross or net salary?
Whichever you prefer to reason about. The calculation is linear, so the cost of a day comes back in the same terms as the salary you entered.
Is this suitable for costing overtime?
Only as the chosen average hourly cost. The legal overtime-pay base may differ from this average; multipliers, thresholds and entitlement need separate determination.
How do I account for holidays and sick leave?
For a time-cost estimate, the same amount can be spread over the chosen actual days: fewer days give a higher average. This is not a payroll, holiday-pay or sick-pay rule. If the payment also changes, enter that amount separately.