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How the billable subtotal is calculated

The calculator finds one shift, subtracts the break, and rounds the remaining minutes up only when an increment is selected. It divides those billable minutes by 60 and multiplies the result by the hourly rate.

For example, 61 billable minutes at $120 per hour is a $122.00 subtotal with no rounding. With 15-minute rounding, it becomes 75 minutes and a $150.00 subtotal.

Calculation boundaries

This calculator subtracts the entered break, then rounds billable minutes up only when an increment is selected. Currency controls display formatting only; no exchange-rate conversion occurs. The subtotal is practical arithmetic, not an invoice, payroll, tax, accounting, employment-law, or recordkeeping determination.

Frequently Asked Questions

What does this billable hours calculator do?
It subtracts break minutes from one start-to-end time span, optionally rounds the billable minutes up, and multiplies the result by the entered hourly rate.
How is the subtotal calculated?
The subtotal is billable minutes divided by 60, multiplied by the hourly rate. It is arithmetic only and does not add taxes, fees, retainers, or invoice adjustments.
Does this support an overnight shift?
Yes. An end time earlier than the start time is treated as occurring on the next day. Equal start and end times do not represent a full-day shift.
How does rounding work?
Rounding is applied after breaks are subtracted. A selected increment rounds billable minutes up to the next increment; choose None to keep the entered-minute total.
What happens when an input is incomplete or invalid?
The result shows a specific input error. A break longer than the shift is invalid, and missing start or end times cannot be totalled.
Does selecting a currency convert the amount?
No. The currency choice only formats the displayed rate and subtotal. No exchange-rate conversion occurs.
Is this a payroll, accounting, or legal calculator?
No. It does not determine payroll, overtime, taxes, accounting treatment, invoicing requirements, employment-law compliance, or recordkeeping obligations.
Can I copy or print the result?
Yes. Copy creates a concise summary and Print opens the browser print dialog. Review the values before using the result elsewhere.