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Billable hours and working hours are not the same thing. This is one of the biggest reasons freelancers, consultants, and contractors accidentally underprice their work.
You may work 40 hours in a week, but that does not mean you can bill clients for all 40 hours. Some time goes to admin, marketing, proposals, planning, bookkeeping, client communication, revisions, scheduling, and unpaid business development.
Working hours are all the hours you spend running your freelance or consulting business. That includes paid client work, unpaid client communication, admin, research, planning, marketing, invoicing, and everything else needed to keep the business moving.
Working hours show how much time your business takes. But they do not show how much time actually earns revenue.
Billable hours are the hours you can charge to a client. These are the hours that directly produce revenue.
If you work 40 hours in a week but only charge clients for 25 of those hours, then your billable hours are 25. The other 15 hours may still be real work, but they are not directly paid by a client.
Your freelance rate needs to be based on billable capacity, not just total working time. If you calculate your rate as if every working hour is billable, your rate will probably be too low.
For example, if you want to earn $100,000 and assume 2,000 billable hours per year, your target rate looks much lower than it would if you only have 1,000 or 1,200 realistic billable hours.
That is why utilization matters. Your utilization rate is the percentage of your working time that is actually billable.
Non-billable work is still real work. It just does not show up as a client invoice. Common examples include:
The fewer billable hours you have, the higher your rate usually needs to be. That does not mean you are charging too much. It means each billable hour has to support the unpaid time around it.
A freelancer who bills 30 hours per week can charge less per hour than someone with the same income goal who only bills 15 hours per week, assuming their expenses and income targets are similar.
Use the Billable Utilization Calculator to estimate how much of your working time is actually billable.
Suppose you work 40 hours per week. Out of that time, you spend 24 hours on paid client work and 16 hours on admin, proposals, calls, planning, marketing, and invoicing.
In that case, your billable utilization is 60%. That means only 60% of your working time directly produces revenue.
If you price your services as if you can bill all 40 hours, your rate will not account for the unpaid 16 hours that still keep the business running.
If you are trying to understand how much of your time is billable, start with the Billable Utilization Calculator.
If you already know your billable hours and want to calculate a rate, use the Freelance Hourly Rate Calculator.
If you are working backward from a salary target, use the Salary to Freelance Calculator.
Billable hours affect your freelance rate, client capacity, and income planning. These tools help you estimate how much of your working time actually produces revenue and how that time connects to your pricing.
Working hours show how much time your business takes. Billable hours show how much time creates revenue. Your freelance rate should be based on realistic billable hours, not an ideal schedule where every hour magically turns into paid work.
Use SetMyRate calculators to estimate hourly rates, day rates, monthly income goals, utilization, salary conversions, and business planning numbers.