Billable Days Calculator
Billable days are the workdays you can actually invoice: total working days minus vacation, public holidays, and the non-billable days swallowed by admin, training, internal meetings, and business development. Freelancers, consultants, and agencies live or die by this number, because it caps annual revenue before a rate is ever quoted. Assume 260 billable days when you really have 200, and every price you set is quietly 30 percent too low.
The Billable Days Calculator below works in two tabs. Billable Days counts the days and your utilization rate: the pre-filled year (260 working days, 20 vacation days, 10 holidays, 30 non-billable days) gives 200 billable days at 76.9 percent utilization. The Day-Rate Planner turns days into money: a $120,000 income target plus $18,000 of business costs over 200 billable days requires a $690 day rate, or $86.25 an hour at 8 billable hours a day.
Planning figures only. Taxes, pension contributions, and unpaid gaps between engagements sit on top of these numbers: many freelancers add a buffer before quoting.
Quick Answer
Key takeaways
- Billable days = working days - vacation - public holidays - non-billable days. Count holidays separately: they are not leave you chose, and hiding them inside vacation understates the plan.
- Most full-time freelancers and consultants land between 200 and 230 billable days. Pricing off 260 is the most common self-inflicted pay cut in freelance work.
- Utilization between 60 and 80 percent is typical. Past 80 percent there is no time left to win next quarter's work.
- Your day rate is a division, not a guess: (income target + business costs) / billable days.
How to count a billable year honestly
Start with weekdays, then subtract in the order life actually removes them. Vacation and leave are planned. Public holidays are fixed by the calendar. Non-billable days are the estimate everyone fudges: internal meetings, training, bookkeeping, marketing, proposals that went nowhere, and the admin tail of every engagement.
Count weekdays. A full year has 260 (52 weeks x 5). Part-time patterns scale down: three days a week is 156.
Subtract leave and holidays. Use your real entitlement and your country's actual holiday calendar, not a round guess.
Estimate non-billable days from last year. One admin day a week is 52 days. Two hours a day is roughly 26. Look at a timesheet, not your optimism.
Price the result before you quote anyone. Run the planner tab with your income target. If the day rate shocks you, the day count was the problem all along.
Worked example: a consultant's year, counted and priced
Both tabs above are pre-filled with this case, and the two halves connect: the 200 days from the first tab are the 200 days in the second.
| Figure | Value |
|---|---|
| Working days | 260 |
| Minus vacation (20), holidays (10), non-billable (30) | -60 |
| Billable days | 200 |
| Utilization (200 / 260) | 76.9% |
| Revenue needed ($120,000 + $18,000) | $138,000 |
| Required day rate | $690.00 |
| Hourly equivalent (at 8 hours a day) | $86.25 |
| Billable hours per year | 1,600 |
Quote $550 a day instead, a number that feels safer in a negotiation, and the same year pays $110,000 against a $138,000 requirement: a $28,000 shortfall discovered in December. The arithmetic is unforgiving precisely because the day count is. If you quote by the hour instead, keep the two consistent with the annual income to hourly calculator, and if a client is buying you by the day at a set rate, the bill rate calculator works the rate side from the other direction.
Typical billable days by working pattern
Patterns differ, and so should the count. These ranges assume a full working year with standard leave.
| Working pattern | Typical billable days | Why |
|---|---|---|
| Full-time consultant | 200 to 230 | Leave, holidays, and 20 to 40 admin days |
| Freelancer with heavy marketing | 170 to 200 | Business development eats 3 or more days a month |
| Agency employee target | 220 to 240 | Agencies set utilization targets near 75 to 80 percent and staff admin centrally |
| Part-time, 3 days a week | 110 to 130 | Scales with the 156-day working year |
Days are the planning unit; hours are the tracking unit. Once the year starts, the question flips from how many days you have to what share of your target hours you have banked, which is what the billable hours goal percentage calculator measures mid-period.
What competing calculators miss
Winning move 1: the count and the price live in one tool. Brave Calculator counts days and stops. Bushe's day rate calculator prices days but asks you to invent the day count yourself, which is the one number people reliably get wrong. The two tabs here feed each other.
Winning move 2: holidays stand on their own line. Brave lumps leave and holidays together. Keeping public holidays separate matters because they are fixed, country-specific, and not negotiable: hiding them inside a leave guess is how a plan quietly gains ten phantom days.
Winning move 3: utilization is reported next to the count. A day total alone says nothing about sustainability. Showing 76.9 percent beside the 200 days lets a consultant see, in the same glance, that the plan is productive and still leaves a quarter of the year for running the business.
Frequently asked questions
Most full-time freelancers and consultants bill 200 to 230 days a year after subtracting vacation, public holidays, and non-billable admin and marketing days from 260 weekdays. The worked example lands on 200.
Between 60 and 80 percent is typical for consultants and agencies. Above 80 percent often means no time for business development; below 60 percent suggests the rate, the pipeline, or the non-billable load needs attention.
Add your target annual income to your annual business costs, then divide by your billable days. For example, $120,000 plus $18,000 over 200 billable days gives a $690 day rate, or $86.25 per hour at 8 billable hours a day.
Any workday you cannot invoice: internal meetings, training, admin, marketing and proposals, bookkeeping, client travel you absorb, and sick days not covered elsewhere. Estimate it from last year's timesheets, not from hope.
Yes. Holidays are fixed by the calendar and differ by country, while vacation is your choice. Counting them separately keeps the plan honest and lets you reuse it across years and countries.
Day rates suit project and retainer work and reward efficiency. Hourly rates suit open-ended or unpredictable scopes. Whichever you quote, both should be built from the same billable-days count so the year still adds up.
The calculator floors billable days at zero rather than showing a negative count. In practice it means the period has no sellable time in it: shorten the period, or revisit whether some of those days were double-counted.
Add This Calculator to Your Website
References
- Harvest, "Target Utilization Calculator" - utilization targets and the billable versus available hours framework for service firms. Harvest: Target Utilization Calculator. Accessed October 2026.
- Harvest, "Billable Hours" glossary - definitions of billable and non-billable time and typical target ranges by industry. Harvest: Billable Hours Glossary. Accessed October 2026.
- Teamwork, "Utilization Rate" glossary - agency utilization definition, formula, and the 70 percent agency ideal. Teamwork: Utilization Rate Glossary. Accessed October 2026.
- Forecast, "Utilization Rate Guide" - definition, formula, and best practices for professional services utilization targets. Forecast: Utilization Rate Guide. Accessed October 2026.
- HiBob, "Employee Utilization Rate" - how utilization is calculated and why around 80 percent balances performance and wellbeing. HiBob: Employee Utilization Rate. Accessed October 2026.
- Supervisible, "What are Billable Hours, and How to Calculate Them?" - billable hour definitions plus utilization, realization, and collection rates. Supervisible: What Are Billable Hours. Accessed October 2026.
- PSOHub, "How to Calculate and Track Employee Utilization Rate" - role-level utilization targets for consultants and professional services firms. PSOHub: Employee Utilization Rate. Accessed October 2026.