Charities are regularly asked to say what their volunteers contributed. Funders want it in an application, trustees want it in an annual report, and a communications team wants a number for an impact page. The problem is that donated time has no price, so any dollar figure attached to it is a convention that somebody chose — and the convention matters far more than the arithmetic.
This volunteer hours value calculator from Arb Digital keeps that choice visible. The hourly figure is an input, not a constant baked into the page, and it defaults to a published national estimate that you can replace with whatever your funder or auditor expects. Alongside the value, it shows the hours themselves, the cost of running the programme, and the retention rate — because a volunteer programme that produces a large notional value while losing most of its people every year is not the success the headline number implies.
What This Volunteer Hours Value Calculator Does
Enter how many volunteers you have, how many hours each gives per month, and over how many months. The tool converts that into total hours, splits them between general and skilled work at whatever proportion you set, values each stream at its own hourly figure, and reports the total. It then subtracts your programme cost to give a net figure, expresses the result as value per dollar spent running the programme, and calculates the retention rate over the period.
Every rate is yours. The tool publishes no wage data, no benchmarks and no sector averages, because the right figure depends on which convention your reader accepts. What it does insist on is that the convention is stated wherever the number appears.
How to Use It
- Count hours you can evidence. Use signed-in hours from a rota or a log. Estimated hours are the fastest way to lose credibility with a funder who asks how you know.
- Choose and record your hourly convention. Whatever figure you use, write down its source and year in the same document as the number itself.
- Split out skilled work honestly. A qualified accountant closing your books is not general volunteering; a trustee stuffing envelopes is. Value each at a defensible rate.
- Include the real programme cost. Coordinator salary, training, background checks, insurance and expenses. Volunteer time is donated; running a volunteer programme is not free.
- Read retention alongside value. A rising notional value driven by a shrinking, overworked core is a warning, not an achievement.
How the Value Is Calculated
Total hours = volunteers × hours each per month × months. With the defaults, 40 × 6 × 12 = 2,880 hours. Skilled hours are 20% of that, 576 hours, leaving 2,304 general hours. Valuing the general hours at $36.14 gives $83,266.56 and the skilled hours at $75 gives $43,200, for a total reporting value of $126,466.56.
Value per volunteer is $126,466.56 ÷ 40 = $3,161.66. Net of an $18,000 programme cost the figure is $108,466.56, and the value per dollar of programme cost is $126,466.56 ÷ $18,000 = 7.03. Retention is 28 ÷ 40 = 70%. The default general rate of $36.14 is the Independent Sector estimate of the value of volunteer time for 2025, which that organisation derives from average hourly earnings for private non-farm production and non-supervisory workers, with fringe benefits added. It is a convention for reporting, published as such.
Why This Figure Is a Convention, Not a Wage
The distinction is not pedantry. A convention is a shared agreement about how to describe something; a wage is a price someone actually pays. Volunteer time is given freely, no employment relationship exists, and no money changes hands. The value produced here describes the scale of a contribution in units a reader understands. It does not describe what anyone would have been paid, what the work is worth on a market, or what the organisation avoided spending.
That last point is the one most often got wrong. It is tempting to say "our volunteers saved us $126,000". Usually untrue: without volunteers, most organisations would not hire the equivalent staff, they would do less. The counterfactual is a reduced programme, not an equivalent payroll. Framing the number as "saved" invites a funder to ask why you need a grant if you are already saving six figures, and the honest answer — that the saving is notional — is a much weaker position than simply reporting the contribution as a contribution.
There is also a duty of care in how the number is used internally. A volunteer told their time is "worth $36 an hour" may reasonably start wondering why they are not being paid it. Published valuations exist for organisational reporting, not for conversations with the individuals who gave the time. The tax treatment makes the same point from the other side: in the United States, IRS Publication 526 on charitable contributions states plainly that a volunteer cannot deduct the value of their time or services, only genuine out-of-pocket expenses. The hour has no deductible price because it never had a price at all.
Where the Number Is Allowed to Appear
In most accounting frameworks, the value of general volunteer time cannot be recognised as revenue in the financial statements. Contributed services are commonly recognised only where they create or enhance a non-financial asset, or where they require specialised skills, are provided by someone possessing those skills, and would otherwise have been purchased. That is why a donated legal opinion or a donated audit can sometimes appear in the accounts while a thousand hours of stewarding a car park cannot.
Practically, that means this figure belongs in narrative reporting — the trustees' report, an impact page, a grant application's supporting case — and not in the income line unless your accountant has told you otherwise for a specific, skilled contribution. Rules differ by country and by framework, so the sentence to remember is that recognition is an accounting judgement made by your auditor against your own jurisdiction's standard, and never a decision made by a calculator.
Retention Is the Number Behind the Number
Total value scales with hours, and hours scale with the number of people who stay. A programme reporting 70% retention is replacing roughly a third of its volunteers every year, and each replacement carries recruitment, screening and training cost before a single useful hour is delivered. That cost sits in the programme cost field and pushes down the value-per-dollar figure.
The relationship is worth watching over several periods rather than one. If total value is flat while retention falls, the remaining volunteers are absorbing more hours each, which is the classic pattern before a sudden collapse when two or three long-serving people leave at once. If value and retention rise together, the programme is genuinely growing. The same logic applies to any recurring relationship, which is why our churn rate calculator and customer lifetime value calculator use the same arithmetic in a commercial setting.
The Boundary With Paid-Time Calculators on This Site
Several tools here price time, and they answer genuinely different questions. This page values donated hours using a reporting convention. The meeting cost calculator prices paid staff time already on your payroll, which is a real cost you incur. The hourly to salary calculator and salary to hourly calculator convert between employment pay bases. The billable hours calculator works out what a professional charges a client.
Mixing these up produces bad reporting. A volunteer hour valued at a convention and a staff hour costed at actual salary are not comparable quantities and should not be added into one total labelled "cost of delivery". If you need a combined picture, present the paid cost and the donated contribution as two clearly labelled lines.
Making the Number Credible to a Funder
Assessors see a lot of volunteer valuations, and the ones that survive scrutiny share four features. They state the hourly figure and cite its source and year. They state how hours were recorded, and for how long. They separate skilled contributions and justify the different rate. And they present the programme cost alongside the value rather than only the flattering half.
Doing all four turns a soft claim into an auditable one. It also protects you when the published convention changes: a report that says "valued at the Independent Sector 2025 estimate of $36.14 per hour" remains accurate forever, whereas a report that says "our volunteers contributed $126,000" becomes unverifiable the moment anyone asks how. If you are writing that narrative, our percentage calculator is handy for the retention and share figures that usually sit beside it.
Arb Digital's content and email teams help organisations turn reporting figures into clear, honest communication that funders and supporters trust.
Content Marketing Services Email Marketing ServicesCommon Mistakes to Avoid
- Calling the figure money saved — without volunteers most organisations would do less, not hire equivalent staff, so the saving is notional.
- Quoting a rate without its source and year, which makes the whole number unverifiable the moment somebody asks.
- Putting the value in the income line without an accountant confirming that your framework recognises those particular contributed services.
- Valuing skilled and general hours at the same rate in either direction — it either understates pro bono work or inflates everything else.
- Reporting value without programme cost or retention, which hides both what the programme takes to run and whether it is sustainable.
Related Free Tools From Arb Digital
For paid time, use the meeting cost calculator, the hourly to salary calculator or the billable hours calculator. For programme sustainability, the churn rate calculator and burn rate calculator apply the same arithmetic to retention and to reserves. The percentage calculator covers the share figures that go beside them, and the free online tools hub lists everything else.
Frequently Asked Questions
Use a published figure your reader will accept and cite it with its year. This tool defaults to the Independent Sector estimate of $36.14 per hour for 2025, but any convention is acceptable provided you name it rather than presenting the result as an unsourced dollar total.
No. It is a reporting convention describing the scale of a contribution. No money changes hands and no employment relationship exists, which is why most accounting frameworks do not recognise general volunteer time as revenue.
Usually only for contributed services that create or enhance a non-financial asset, or that require specialised skills held by the volunteer and would otherwise have been purchased. That judgement belongs to your accountant under your own jurisdiction's standard.
Yes. Pro bono legal, clinical, accounting or technical work is normally valued at a published rate for that occupation rather than at a general volunteering figure, and the split should be stated wherever the total appears.
Almost never. Without volunteers most organisations would reduce their programme rather than hire equivalent paid staff, so the counterfactual is less activity, not an equal payroll. Report the figure as a contribution, not as a saving.
It is the number of volunteers still active at the end of the period divided by the number active at the start. With 28 of 40 still active, retention is 70% and turnover is 30%.
Be careful. Published valuations exist for organisational reporting, and telling an individual their donated time is worth a specific hourly amount can reasonably prompt the question of why it is not being paid.
This tool performs arithmetic on figures you enter and publishes no wage data or sector benchmarks of its own. It is not accounting, tax or legal advice. Whether any contributed service may be recognised in your financial statements is a judgement for your accountant or auditor under the reporting framework that applies to your organisation.
