Pro Rata Salary Calculator

How the pro rata salary calculator works

1. 1

   Enter the advertised full-time salary

   Job postings that list a salary as pro rata are quoting the full-time equivalent. Enter that headline figure first, since everything else in this calculator is a proportion of it rather than a separate rate of pay.

2. 2

   Enter the employer's full-time hours

   Full-time hours commonly sit around 37.5 to 40 a week in Canada, and vary by employer and by provincial employment standards. Use the employer's own full-time figure rather than a general assumption.

3. 3

   Enter the hours you actually work

   The ratio between your hours and full-time hours is the share of the salary you receive. The calculator shows this ratio explicitly so you can check an offer against the posted full-time figure.

4. 4

   Add a part-year period if you are not working the full year

   If you are starting, leaving, or on a fixed-term assignment for only part of the year, set the number of months. The calculator then shows both the annualized salary and the amount for that shorter period.

The pro rata salary formula

Pro rata annual salary = full-time salary x (your hours / full-time hours) Part-year pay = pro rata annual salary x (months worked / 12)

• •The hours ratio and the part-year ratio apply separately, so a half-time role for six months pays a quarter of the full-time annual salary.
• •The monthly figure divides the pro rata annual salary by twelve and the weekly figure divides it by 52.
• •Pro rata scaling applies to salary. Vacation entitlement under federal or provincial employment standards follows its own service-based rules and is not simply the same percentage.
• •This calculator works in gross pay. Federal and provincial income tax, CPP and EI are calculated from the pro rata figure, not from the full-time equivalent.

Worked example: 24 hours a week on a $70,000 full-time salary

A role is posted at $70,000 a year pro rata, based on a 40-hour full-time week. The employee will work 24 hours a week for the whole year.

Full-time salary

$70,000

Full-time hours per week

40

Hours actually worked per week

24

Proportion of full time

60%

Pro rata annual salary

$42,000.00

Monthly gross pay

$3,500.00

Weekly gross pay

$807.69

The role pays $42,000 a year, which is 60% of the $70,000 full-time equivalent salary.

What pro rata does and does not cover

Pro rata is about the ratio, not a lower rate of pay

A pro rata salary should reflect the same hourly value as the full-time equivalent, and that hourly value must still meet the applicable federal or provincial minimum wage. If the implied rate is lower than the minimum, that is a compliance issue rather than a pro rata calculation.

Vacation entitlement follows its own service-based rules

Vacation weeks and vacation pay percentage typically depend on years of service under the applicable employment standards (federal or provincial), not on the pro rata salary ratio. Use a dedicated vacation-pay calculator to check entitlement.

CPP and EI still apply proportionally to actual earnings

Canada Pension Plan and Employment Insurance contributions are based on actual pensionable and insurable earnings, so they scale naturally with the pro rata salary rather than needing a separate adjustment.

Part-year and part-time are separate reductions

Working reduced hours for only part of the year applies both reductions. The calculator keeps them visible so you can see whether an offer reflects the hours, the period, or both.

Frequently asked questions

What does pro rata mean on a Canadian job posting?

It means the salary shown is the full-time equivalent and your actual pay will be a share of it based on the hours you work. A $70,000 pro rata salary for a role worked at 24 hours a week on a 40-hour full-time schedule pays $42,000. Employers quote the full-time figure so candidates on different schedules can compare a role on a like-for-like basis.

How do I calculate my pro rata salary?

Divide your weekly hours by the employer's full-time weekly hours, then multiply the full-time salary by that fraction. For 24 hours against a 40-hour week the fraction is 0.6, so a $70,000 salary becomes $42,000. If you are also only working part of the year, multiply again by the months worked divided by twelve.

Does full-time mean the same hours in every province?

No. Federal and provincial employment standards set different thresholds for concepts like overtime eligibility, and individual employers set their own full-time hours anywhere from about 35 to 40 a week. Always use the specific employer's stated full-time hours when checking a pro rata figure.

Is my vacation pay also 60% if I work 60% of full-time hours?

Not directly. Vacation entitlement (weeks) and the vacation pay percentage generally scale with years of service under the applicable employment standards rather than with the pro rata salary ratio. A federal vacation pay calculator will give a more accurate figure than applying the salary ratio to vacation.

Is a pro rata salary calculated before or after tax?

Before. The pro rata figure is your gross salary, and federal tax, applicable provincial tax, CPP and EI are then calculated from that reduced amount. Because federal and provincial basic personal amounts are not pro-rated, part-time workers typically pay a lower average tax rate than the full-time headline salary would suggest.