Work Hours Calculator
Calculate paid hours, break time, and estimated pay
Work Hours Calculator — what it does
Calculate paid hours from a start and end time with an unpaid break deducted, including shifts that end the next day, and optionally estimate pay from an hourly rate. It is the arithmetic behind a single day's entry on a timesheet, done properly rather than rounded in someone's head.
When this tool helps
- Working out paid hours for a shift that ran past midnight.
- Checking a day's hours and expected pay against what was recorded.
- Estimating the cost of a shift before scheduling it.
How to use it
- Enter the start and end times.
- Enter the unpaid break in minutes.
- Tick that the end time is the next day for an overnight shift.
- Add an hourly rate to see estimated pay.
Accuracy, limits, and good practice
- The overnight checkbox is the one people forget: without it, a shift from 22:00 to 06:00 computes as negative rather than eight hours.
- Whether a break is paid is a contractual and legal question that varies widely — deduct it only when it genuinely is unpaid.
- Estimated pay is gross. Tax, contributions and deductions are applied afterwards by payroll.
Frequently asked questions
How do I handle a shift crossing midnight?
Tick the next-day option and the calculation spans midnight correctly instead of producing a negative duration.
Should breaks always be deducted?
Only unpaid ones. Many jurisdictions mandate rest breaks and some require them to be paid, so check your contract and local law.
Why is my pay slightly different from the payslip?
Rounding rules and premium rates for overtime or unsocial hours are applied by payroll, and this figure is a gross estimate.
Related tools on this site
- World Time Zone Converter — Convert a date and time from one time zone into multiple destination zones
- Break-even Calculator — Calculate break-even units and revenue
- Discount Calculator — Calculate discounted price, savings, tax, and quantity total
Everything above runs inside this page. Work Hours Calculator needs no account, no upload, and no server round trip — close the tab and nothing is left behind.
工時計算器能做什麼
由上下班時間扣除無薪休息計算實際計薪工時，支援跨日班別，也可填入時薪估算薪資。這是工時表上單日那一列背後的算術，好好算出來，而不是在腦中四捨五入。
什麼時候用得上
- 計算跨過午夜的班別實際計薪工時。
- 核對某一天的工時與應得薪資是否與記錄相符。
- 排班前先估算一個班別的人力成本。
使用步驟
- 輸入上班與下班時間。
- 輸入無薪休息分鐘數。
- 跨夜班請勾選「下班時間為隔天」。
- 填入時薪即可看到預估薪資。
精確度、限制與實務建議
- 跨日勾選框是大家最常忘的一項：沒勾的話，22:00 到 06:00 會算成負數而不是八小時。
- 休息是否計薪是契約與法律問題、各地差異很大——只有真的無薪才扣。
- 預估薪資為稅前。稅、保費與各項扣除由薪資作業後續處理。
常見問題
跨午夜的班別怎麼算？
勾選隔天選項，計算就會正確跨越午夜，而不會產生負時長。
休息時間一定要扣嗎？
只扣無薪的。許多法域強制規定休息時間，部分還要求給薪，請查閱契約與當地法規。
為什麼跟薪資單有點出入？
薪資作業會套用進位規則與加班、夜班等加成費率，而這裡只是稅前估算。
本站相關工具
以上步驟全部在這個頁面內完成，工時計算器 不需要註冊、不上傳檔案、也不經過伺服器，關閉分頁後不會留下任何資料。