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Calculate half-day and partial-day earnings

Calculate an agreed day portion, compare half and three-quarter days, and avoid assuming a standard day length.

SHORT ANSWER

Multiply the agreed daily rate by the agreed day portion: half a day at $250 is 0.5 × $250 = $125; three quarters is $187.50. Only prorate by hours if you also agreed what a full day is.

Multiply the agreed daily rate by the day portion

A day-rate entry needs two things: the rate for the agreed full day and the portion being recorded. The portion should reflect the agreement rather than an assumption about how long a day usually lasts.

Base earning = agreed daily rate × agreed day portion
Portion at $250 per dayBase earning
Quarter day · 0.25$62.50
Half day · 0.5$125.00
Three-quarter day · 0.75$187.50
Full day · 1$250.00

When you know hours instead of a portion

If prorating by hours is what you agreed, divide the paid hours by the agreed full-day hours. Five paid hours in an agreed ten-hour day is half a day. Five hours in an agreed eight-hour day is 0.625 of a day. At $250, those two agreements produce $125 and $156.25 respectively.

Keep the rate with the entry

In Crew Tally, each saved work entry retains the rate used for that entry. Changing a worker’s usual rate affects new entries. It does not silently rewrite old work. If a saved entry is wrong, use Correct and explain why it changed.

A base earning is only one part of a pay review

This calculation describes the entered agreement. It does not determine overtime eligibility, minimum pay requirements, employment status or deductions. Review those obligations separately before relying on a total for payment.

Quick answers

How much is half a day at $250?

$125. Half a day is a portion of 0.5, and 0.5 × $250 = $125.

Is a half day four hours?

Only if that is what you agreed. A day portion follows the agreement; the calculator never assumes a full day is eight hours.

Can I prorate a day rate by hours?

Yes, if you also agreed the length of a full day. Divide paid hours by that length to get the portion, then multiply by the rate.

Calculate day-rate earnings

Crew Tally product guide · Examples in USD · Updated 4 October 2026