Free tool

Billable hours calculator

Calculate weekly billable hours and the amount to bill each client. Enter daily hours or start and end times, deduct breaks and apply your contract's rounding rule if needed. Nothing you type is saved or sent anywhere.

Enter time as

Your week

Billable hours
0:00
0.00 hours
Non-billable hours
0:00
0.00 hours
Amount to bill
$0.00
Hours times rate, before tax

How does the calculator count billable hours?

The calculator deducts breaks, applies any rounding you choose and multiplies billable hours by the client's rate. Each client has separate hours, breaks and rates.

First

Breaks come off each day

The calculator subtracts the break you set for a client from each day with time entered for that client, before rounding. Daily hours never drop below zero.

Then

Rounding happens once per day

Choose no rounding, or round up or to the nearest 6, 15 or 30 minutes. Rounding applies once to each client's daily total, so small entries do not pile up into extra hours.

Last

Only billable work adds to the amount

Untick Billable for internal work. Those hours appear in the non-billable total and do not add to the amount to bill.

What should you know about calculating billable hours?

Is the billable hours calculator free?

Yes. The billable hours calculator is free, with no sign-up. It runs in your browser. Nothing you type is saved or sent anywhere, and closing the page clears it.

How do you calculate billable hours?

Billable hours are time spent on work a client has agreed to pay for. Add up that time, excluding breaks and internal work, then apply any rounding rule in your contract. Multiply each client's billable hours by their hourly rate to calculate the amount to bill.

Should billable time be rounded to 6 or 15 minutes?

Round billable time only if your contract or engagement letter requires it. Six minutes is a tenth of an hour, which keeps invoice lines easy to read; 15 minutes is the other common step. Whichever you use, apply it the same way to every client and every day.

What if the work runs past midnight?

Enter the actual start and end times, for example 22:00 to 02:00. When the end time is earlier than the start time, the calculator treats it as the next day.

Can I enter 7:30 instead of 7.5 hours?

Yes. In Hours per day mode, the calculator accepts 7.5, 7,5 or 7:30. All three mean seven and a half hours.

Does Timen round tracked time?

No. Timen has no rounding setting and keeps tracked time unchanged. If your contract requires rounding, adjust the hours on the invoice line before sending the invoice.

Want to track billable hours as you work?

Timen tracks your hours as you work and turns them into an invoice. The full product is free, with unlimited users.