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Time to Fill Calculator

Measure time to fill — the number of days between when a role opened and when an offer was accepted. Pick two dates and the calculator returns the elapsed days in your browser.

Practical use cases

  • Recording how long a specific role took to fill from approval to accepted offer.
  • Tracking time to fill consistently across roles and teams.
  • Informing hiring forecasts and recruitment planning timelines.

Calculator

Works entirely in your browser — nothing is sent, saved or tracked. Results update as you type.

Time to fill
Basis

Estimate only, from the figures you enter. Nothing is sent or stored.

How it works

The formula is:

Days between the job opening and the accepted offer

Define the start point once and apply it consistently — most teams use the date the requisition was approved/opened. The end point is the date the candidate accepted the offer (not their start date).

Worked example: If a role opened on the 1st and the offer was accepted on the 43rd day after, time to fill is 42 days.

For the full background — what it measures, why it matters and how to read it — see the time to fill guide.

How to read the result

Time to fill describes the role and the market more than the candidate; it starts before anyone applies. It overlaps with — but is not the same as — time to hire, which starts when a specific candidate enters the pipeline.

Compare like with like: a senior or specialised role and a high-volume role naturally behave differently. Trends for the same role type over time are usually more useful than one cross-role average.

Common mistakes

  • Using the candidate start date instead of the offer-acceptance date as the end point.
  • Changing the start definition between roles (sometimes requisition approval, sometimes first advert).
  • Averaging very different role types together so the number hides more than it shows.
  • Confusing time to fill with time to hire — they start at different points.

Free, printable planning resources

Plan and onboard consistently alongside the numbers. No signup, no gating.

Informational only. This calculator gives a simple estimate for planning and education from the figures you enter. It is not legal, tax, financial or employment-law advice, contains no benchmarks, statistics or salary data, and makes no claims about any real population. It runs entirely in your browser — nothing is sent, stored or tracked. Confirm anything that matters with a qualified professional.

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FAQ

Frequently asked questions

What does time to fill measure?

The number of days from when a role opened (typically requisition approval) to when a candidate accepted the offer.

How is it different from time to hire?

Time to fill starts when the role opens; time to hire starts when a specific candidate enters the pipeline. Time to fill is usually the longer of the two.

Should the end date be the start date or the acceptance date?

Use the offer-acceptance date. The candidate start date depends on notice periods and is measured separately if needed.

Is my input stored?

No. The date difference is computed in your browser and nothing is sent or saved.