Overtime and Night Multiplier Worksheet
Calculate extra-hour pay under a chosen multiplier. It does not determine Korean statutory overlap of overtime, holiday and night rules or workplace scope, so it is not a final legal wage claim.
- Runs in your browser
- Nothing is uploaded
- No signup; device limits apply
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How to use this tool
Enter base hourly wage, additional hours and a 1.5, 2 or custom multiplier. Night mode adds 0.5 to that factor; check whether the base pay is already included to avoid counting it twice.
Results and examples
The result is wage × extra hours × total factor. It does not include regular weekly wages, and labels such as holiday require separate verification against actual hours and applicable rules.
Worked example
KRW 15,000 for two hours at 1.5 plus a 0.5 night increment gives KRW 60,000.
Limitations
- Legal ordinary-wage composition and holiday hours beyond eight are not determined.
- Current premium eligibility and workplace scope need review.
Fields
| Field | Guidance and constraints |
|---|---|
| Base hourly wage (KRW) | Check the unit and format displayed beside this field. |
| Overtime hours | Check the unit and format displayed beside this field. |
| Overtime ×1.5 | Check the unit and format displayed beside this field. |
| Holiday overtime, etc. ×2.0 | Check the unit and format displayed beside this field. |
| Custom | Check the unit and format displayed beside this field. |
| Multiplier (custom) | Check the unit and format displayed beside this field. |
| Add night premium +0.5 | Check the unit and format displayed beside this field. |
Data handling
Processing stays in the current browser tab; the site does not upload tool input for the calculation itself.
Sources
Frequently asked questions
What factor does night mode use?
It adds 0.5, making a selected 1.5 factor total 2.
Are regular weekly wages included?
No. Only the entered additional hours are calculated.
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