Time Card Calculator

How This Calculator Works

A time card calculator adds up a full work week of daily clock-in and clock-out times into a total, split into regular and overtime hours. Enter each day’s clock-in and clock-out time (and any unpaid break), leave days you didn’t work blank, and this calculator totals the week and shows what you’re owed if you enter an hourly rate — including any overtime premium.

Unlike this site’s Hours Worked Calculator, which handles a single shift, this one is built for the whole week at once: each day is calculated the same way (including handling an overnight shift that crosses midnight), then the seven daily totals are added together before regular and overtime hours are split out.

The Formula

Each day’s hours come from the same subtraction as a single shift:

$$\text{Hours} = (\vA{\text{Clock-Out}} - \vB{\text{Clock-In}}) - \vC{\text{Unpaid Break}}$$

The week’s total is the sum of every day worked. That total then splits into regular and overtime hours at your chosen threshold (40 hours per week by default):

$$\vF{\text{Regular Hours}} = \min(\vE{\text{Total Hours}}, \vD{\text{Overtime Threshold}})$$ $$\vG{\text{Overtime Hours}} = \max(0, \vE{\text{Total Hours}} - \vD{\text{Overtime Threshold}})$$

Total pay adds regular pay to overtime pay, with overtime paid at your chosen multiplier (1.5×, or “time and a half,” by default):

$$\text{Total Pay} = (\vF{\text{Regular Hours}} \times \text{rate}) + (\vG{\text{Overtime Hours}} \times \text{rate} \times \text{overtime multiplier})$$

Worked Example

Five 9-hour days (8:00 AM to 5:00 PM, no break) at a $20/hour rate, with the default 40-hour overtime threshold and 1.5× multiplier:

1. Total Hours: $5 \times 9 = \vE{45} \text{ hours}$ for the week.
2. Regular Hours: the first $\vF{40}$ hours.
3. Overtime Hours: the remaining $\vE{45} - \vD{40} = \vG{5} \text{ hours}$.
4. Regular pay: 40 × $20 = $800.
5. Overtime pay: 5 × $20 × 1.5 = $150.
6. Total pay: $800 + $150 = $950.