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HR-to-Employee ratio
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See how many employees each of your HR people supports, and how that compares to businesses your size.

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HR to employee ratio
 
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What is a good HR-to-employee ratio?

It depends heavily on size. Smaller businesses often run around 2.5 to 3.5 HR staff per 100 employees, while large organisations trend toward 1.0 to 1.5 per 100 (SHRM). There is no single right number, only the right number for your size and complexity.

How we calculated this

We divide total employees by HR full-time equivalents to give the number of employees each HR person supports, and express the same relationship the other way round as HR staff per 100 employees. We then show a benchmark band for your size, because the ratio moves a lot with headcount: small organisations carry more HR per 100 because the base workload of hiring, onboarding, compliance and records does not shrink with the business. The bands are a convention drawn from SHRM's benchmarking series, not a target. The working, the assumptions and the sources are below.

New to the term? Read the plain-English definition of the HR-to-employee ratio in the HR Glossary.

Your working
Assumptions
  • HR is counted in FTE, and includes everyone doing HR work: generalists, recruiters, payroll and learning if they sit in the function. Leave payroll out and your ratio looks leaner than it is; leave outsourced recruitment out and it looks busier.
  • Total employees is headcount, including part-time and casual staff. HR workload follows people rather than FTE.
  • The size bands (about 2.5 to 3.5 per 100 under 250 employees, 1.5 to 2.5 up to 1,000, and 1.0 to 1.5 above) are a rounded convention drawn from SHRM's human capital benchmarking size splits. SHRM's own headline figures are an average of 1.7 per 100 (2022) and a median of 1.98 (2025), so a ratio near the top of your band is normal, and sector matters more than the band.
  • The ratio says nothing about workload mix. Two organisations at 1:100 can be under very different pressure if one is hiring hard and the other is not, or if one runs five HR systems and the other runs one.
Sources
  • SHRM, "How Many HR Staff Members Is Best?" (SHRM 2022 Human Capital Benchmark average of 1.7 HR staff per 100; ADP Research Institute range of 1.5 to 4.5), January 2024
  • SHRM Executive Network, CHRO benchmarking survey insights (median HR-to-employee ratio of 1.98 per 100 in 2025, up from 1.58 in 2017), 2025
  • The size bands shown on this page are a rounded convention drawn from SHRM's Human Capital Benchmarking size splits, and are labelled that way. SHRM's underlying benchmarking reports are not freely published, so treat the bands as orientation rather than a standard.

What to do about it

The ratio tells you how thin the function is spread. It does not tell you whether the problem is too few people or too many systems, and those have different fixes. These steps are for whoever leads or reports on the HR function, whether or not they set its budget.

1

Benchmark against your size and your sector, not the average

Put your ratio next to the band for your headcount, then adjust for context: heavy hiring, an award-heavy or unionised workforce, several sites, or a regulated industry all justify more HR per 100. Write the adjustments down; they are the argument.

2

Audit where the HR time actually goes

For two weeks, have the team log time in four buckets: administration and data handling, compliance, hiring, and advice to managers. Most lean teams are surprised how much of the week goes on the first bucket. That share is the number to take upstairs.

3
Where a tool helps

Count the systems before you count the people

List every tool HR touches to make a hire, run a survey, answer a manager's question or produce a board report, and how many times data is re-keyed between them. Fragmented tools make a small team look understaffed. Consolidating them is usually faster and cheaper than the extra role, and it makes the extra role more effective when it comes.

4

Put the ratio next to the outcomes

Time to hire, regretted turnover, compliance misses, manager satisfaction with HR. A lean ratio with good outcomes is efficiency. A lean ratio with slow hiring and rising exits is under-resourcing, and the outcomes are the evidence.

5

Make the case with both numbers

The ratio gets attention. The outcomes and the time audit get the decision. Present all of it on one page each half year, and ask for the system fix and the headcount in the order that will actually relieve the pressure.

A lean HR team needs
one set of people data.

Compono is a talent intelligence platform: an applicant tracking system and an employee engagement platform built on the same people data. Most HR stacks split hiring, engagement, learning and reporting across separate systems, so a small team spends its week moving data between them instead of making decisions with it.

Step 3 asks you to count the systems before you count the people. Compono takes two of the busiest off the list and joins them, so the fit read from hiring and the engagement read from the teams sit in one place a lean function can act on. The ratio above says how far the team is stretched. Fewer systems shrink the stretch without adding a head.

See how it works
Compono
$34M
saved by VicRoads over two years

Common questions

Why do smaller companies need a higher HR ratio?

Because the base workload does not scale down cleanly. Compliance, hiring, onboarding and record-keeping still have to happen whether you have 80 people or 800, so a small business carries proportionally more HR effort per employee.

How do I calculate the HR-to-employee ratio?

Divide your total number of employees by your HR full-time equivalents to get employees per HR person, or divide HR staff by total employees and multiply by 100 for HR staff per 100 employees. Both describe the same thing from different angles.

Should I hire more HR staff if my ratio is high?

Not necessarily. A high ratio can mean you are under-resourced, or it can mean your tools are making a small team work harder than it should. Consolidating fragmented HR systems often relieves the pressure faster than adding headcount.

This page is general information, not legal advice. We check figures annually and update them on a best-efforts basis, but employment rules change and we cannot promise everything here is current or complete. Before you act on it, confirm the detail with the relevant authority in your country or your own adviser. Last reviewed July 2026.

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The HR-to-employee ratio

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