Billable Hours Calculator

About this calculator

For professionals who sell their time — lawyers, consultants, agencies, freelancers — the gap between hours worked and hours actually billed to a client is the whole business model. This calculator divides your billable hours by your total hours worked to get your utilization rate, and multiplies billable hours by your hourly rate to get billable revenue, giving both the efficiency metric and the dollar outcome in one step.

Utilization rate is one of the core KPIs at law firms, ad agencies, and consultancies because it directly drives revenue per employee — time spent on admin, internal meetings, business development, or unbillable overhead all pull utilization down even if the team is genuinely busy. Managers track it to staff projects correctly and to spot when 'busy' isn't the same as 'profitable'.