Why Your Salary-to-Hourly Conversion Didn't Match a Job Offer's Numbers
A mismatch usually comes from a different assumed work-week length (some roles use more or fewer than 40 hours/week as their standard), a different treatment of bonuses or commission (sometimes included in a quoted "total compensation" hourly figure, sometimes not), or the offer using actual expected worked hours rather than the standard 2,080-hour baseline.
A discrepancy between a personal calculation and an official figure is usually explainable by one of these specific assumption differences, not a calculation error.
Different assumed work-week length
Not every role uses a standard 40-hour week as its baseline — some contexts use a different standard number of hours, which changes the denominator in the conversion and produces a different hourly-equivalent figure for the identical salary.
Bonuses and variable compensation
A job offer's stated "total compensation" figure sometimes includes an expected bonus or commission alongside base salary — converting that combined total to an hourly rate produces a higher figure than converting base salary alone, which is a common, specific source of mismatch worth checking for explicitly.
Different assumed annual hours
As covered in the standard-conversion guide, using actual expected worked hours (accounting for typical unpaid time off, or conversely for expected regular overtime) instead of the standard 2,080-hour baseline produces a genuinely different, more situation-specific hourly figure.