Hourly Rate to Day Rate Calculator
This day rate calculator converts a known hourly rate to its day-rate equivalent, or a day rate back to hourly, using the hours you actually charge for in a day rather than an assumed flat 8.
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The only thing connecting an hourly rate and a day rate is how many hours actually get charged in a working day.
An hourly rate and a day rate are the same underlying money in two different units — and the number joining them is not always 8. A site day with an hour of travel each way charges out differently to a full office day.
This calculator does the one-step job: enter the rate you know, set the hours that count as a working day, and get the other rate straight back. No tax modelling, no rebuilding your rate from scratch, and no assumptions about your working pattern beyond what you tell it.
Why not use a contractor day rate calculator?
Search for a rate converter and most of what comes back is built for a different job. IR35 and umbrella take-home-pay calculators fold the conversion into a full tax and contract-status model, aimed at IT and professional contractors weighing inside versus outside IR35.
Generic salary and payroll calculators convert an annual salary into an hourly figure with no day-rate concept at all. Trade-labelled tools tend to go the other way, recommending a rate built up from overheads, trade, region and experience rather than converting a rate you already have.
None of them does the plain, two-second job: take a rate you already know, and show what it is in the other unit. That is what this page is for.
A worked example
A tradesperson who normally quotes £25.00 an hour, converting to a day rate for a job priced by the day.
£25.00 an hour over an 8-hour chargeable day gives a £200.00 day rate — £1,000.00 a week at five days, and an annual revenue capacity of £42,000.00 at 210 chargeable days. That capacity is a ceiling, not a promise: it assumes every chargeable day is booked and invoiced.
Converting the other way, a subcontractor quoted a £350.00 day rate for an 8-hour day works out at £43.75 an hour, or £1,750.00 a week.
A shorter, travel-heavy day changes the answer: the same £18.50 hourly rate over a 6-hour chargeable day converts to £111.00, not £148.00 — the difference an editable hours-per-day figure makes over an assumed flat 8.
Why the hours-per-day figure matters
Every ranked competitor either skips this question or assumes a flat 8-hour day.
A site day with travel
An hour each way to and from site cuts straight into chargeable hours, even on an 8-hour working day.
An office or admin day
Can run longer than 8 hours without the same travel cut.
A short call-out day
Several separate short jobs can add up to fewer chargeable hours than one full-day job.
How this fits with the other calculators
This page converts a rate you already have. Two others build one.
Hourly Rate to Day Rate
This page. Converts between the two units through the hours actually charged in a day.
Tradesperson Day Rate
Builds a day rate from scratch out of costs, overheads and target earnings.
Working Days and Chargeable Days
Supplies the chargeable-days-per-year figure this page uses for annual capacity.
Who this is for
Built for sole traders and subcontractors who already know one of their two rates and need the other for a quote or a variation — not a tax, IR35 or take-home-pay calculator, and not a substitute for advice on employment status.
Turn the rate into a quote that carries through
FieldHive keeps the enquiry, quote, job, invoice and payment connected, so the rate you converted is the rate that reaches the invoice instead of being retyped.
Build the supporting figures
Use these alongside the day rate calculator.
Tradesperson Day Rate Calculator
Build a day rate from scratch out of costs, overheads and target earnings.
Build a day rate →Working Days and Chargeable Days Calculator
Work out the chargeable days a year this page uses for annual capacity.
Count chargeable days →True Labour Cost Calculator
Check the hourly rate covers what an hour of labour actually costs.
Calculate labour cost →Rate conversion questions
Quick answers to the questions people ask most.
Quote in whichever unit the job needs
Convert the rate you already charge and quote by the hour or by the day without the numbers drifting apart. FieldHive keeps the quote, job and invoice connected.
