What this calculator measures
Your contract rate divides pay by paid hours. This tool divides what is left after work costs by all the hours the job takes. The two numbers differ because the job uses more hours than it pays for.
The idea comes from Joe Dominguez and Vicki Robin in their 1992 book Your Money or Your Life. They used it to compare a job against the life it uses, not to find a smaller number for its own sake.
This tool converts every figure to a year and divides once. That avoids mixing per-day and per-week rates.
What counts as unpaid time and work costs
Unpaid time is any time the job takes that you are not paid for. Common examples:
- Commute both ways
- Getting ready for work
- Unwinding afterwards
- Unpaid overtime
Work costs are money you spend because you are at work. Common examples:
- Travel to and from work
- Food bought because you are at work
- Parking
- Childcare you would not otherwise pay for
- Clothes and tools the job requires
- Anything else you add
The tax field is a percentage you supply. This page does not calculate your tax. For a US estimate, use the paycheck calculator.
Judgement calls you have to make
Some costs are not clear-cut. A lunch you would have eaten anyway is not wholly a cost of working. Childcare may not belong entirely to the job. A long commute you chose for a cheaper house is a trade you made, not a cost the job imposed.
You decide what to include. The result is only as good as your inputs.
The number can come out negative. That means the job costs more than it pays. It is a real answer, not an error.
Worked example
Suppose you earn $52,000 a year. You enter a tax rate of 20 percent. Work costs are $3,000 for the year. Paid hours are 2,080. Unpaid time adds 10 hours a week for 50 weeks, which is 500 hours.
Pay after tax: $52,000 minus 20 percent = $41,600. Subtract work costs: $41,600 minus $3,000 = $38,600. Total hours: 2,080 + 500 = 2,580. Real hourly wage: $38,600 divided by 2,580 = $14.96.
The contract rate was $25.00 per hour ($52,000 divided by 2,080). The real rate is $14.96.
What to do with the result
Use it to compare two jobs on the same basis. A job with a higher contract rate may have a lower real rate after a long commute and unpaid overtime.
Use it to see what one change is worth. Moving closer, dropping one commuting day, or cutting unpaid overtime can raise your real rate.
For hours and decimal conversions, see the hours calculator. For salary to hourly, see the salary calculator.
This result is an estimate. Your employer's payroll is the record.