2026-09-14 9 min

Timesheet Calculator

Total a Mon–Fri timesheet — weekly hours, regular vs 1.5× overtime split, and gross pay with daily average.

Calculator

Daily Hours

Monday

Tuesday

Wednesday

Thursday

Friday

Pay Rate

Hourly Rate

Results update automatically

Results update live as you type

Status:Week 40.0 hrsNo overtime$1,000.00

Timesheet Summary

Total hours40.00

Regular / OT40.00 / 0.00

Gross pay$1,000.00

Split$1,000.00 + $0.00

Average day8.00 hrs · 5/5 days

Week Progress

Hours vs 40 standard40.0 / 40 h

Regular share40.0 / 40.0 h

Overtime share0.0 h

Breakdown

Measure	Value
Regular pay	$1,000.00
Overtime pay (1.5×)	$0.00
Rate applied	$25/hr
Average day	8.00 hrs
Days worked	5 / 5
Gross pay	$1,000.00

Results

Optimal

Total Hours

40.00hrs

Mon–Fri sum

Regular Hours

40.00hrs

First 40 hours at straight time

Overtime Hours

0.00hrs

Hours past 40 at 1.5×

Gross Pay

$1,000.00

Regular + overtime pay

Regular Pay

$1,000.00

Regular hours × $25/hr

Overtime Pay

$0.00

OT hours × $25/hr × 1.5

Average Day

8.00hrs

Total ÷ 5 weekdays

Days Worked

5 / 5

Days with hours above zero

Exact decimal addition with the standard 40-hour week and 1.5× premium. Daily caps at 24 hours; state rules may vary.

Visualizations

Hours by Day

8hMon

8hTue

8hWed

8hThu

8hFri

Week vs 40-Hour Standard

Hours40h

Overtime vs Regular

Overtime0

Mon

Tue

Wed

Thu

Fri

Mon 8.00 hTue 8.00 hWed 8.00 hThu 8.00 hFri 8.00 h

Formula

Five decimal entries add exactly; the 40-hour federal weekly threshold splits straight time from the half-rate premium.

Total = Σ days; regular = min(40); OT = max(total−40); pay = reg×r + OT×r×1.5

Alternative Form

Average day = total ÷ 5; days worked = count(hours > 0)

Variables

Symbol	Name	Unit	Description
Di	Daily hours	hours	Mon–Fri entries, 0–24 each
T	Weekly total	hours	Exact five-day sum
R/O	Regular / OT	hours	Split at 40 hours
P	Gross pay	USD	R×r + O×r×1.5

Explanation

Weekly (not daily) overtime matches the federal standard most US employers follow; daily-OT states layer their own rules on top.

Derivation

T = ΣDi; R = min(T,40); O = max(T−40,0); P = R·r + O·r·1.5; avg = T/5.

Step-by-Step Calculation

Follow each step to understand how the result is calculated from your inputs.

Step 1

Enter each weekday as decimal hours.

Day entries capped 0–24 h

Mon:8

Tue:8

Wed:8

Thu:8

Fri:8

Intermediate: Quarter-hour steps supported

Result: 5 days entered

Step 2

Add the five days for the weekly total.

Total = Mon + Tue + Wed + Thu + Fri

Total:40.00

Intermediate: Exact decimal addition

Result: 40.00 hours this week

Step 3

Split at the 40-hour overtime threshold.

Regular = min(total, 40); OT = max(total − 40, 0)

Regular:40.00

Overtime:0.00

Intermediate: Federal weekly standard

Result: 0.00 overtime hours

Step 4

Price regular hours straight.

Regular pay = regular × rate

Rate:$25/hr

Regular Pay:$1,000.00

Intermediate: First 40 at 1.0×

Result: $1,000.00

Step 5

Price overtime at time-and-a-half.

OT pay = OT hours × rate × 1.5

OT Pay:$0.00

Intermediate: Premium half-rate included

Result: $0.00

Step 6

Total the week and compute the daily average.

Gross = regular + OT; average = total ÷ 5

Gross:$1,000.00

Average Day:8.00

Intermediate: Week ready for payroll export

Result: $1,000.00 for 40.00 hours

Final Answer

40.00

Worked Examples

See how the calculator works with different scenarios.

Scenario

Five 8-hour days at $25/hr.

Inputs

Days:5 × 8.00

Rate:$25

Calculation

40.00 regular + 0.00 OT → $1,000.00

Result

40.00 h — $1,000.00

Interpretation

The clean full-time week with no premium.

Understanding Your Result

Your Result: Total Hours: 40.00 hrs

Typical range: Full-time weeks run 36–40 hours; OT weeks 41–60; sustained 60+ signals understaffing.

What This Means

Total hours show the workload; the split shows the premium exposure; pay lines show the money; averages show the rhythm.

Why It Matters

Overtime misclassification is a top wage-and-hour violation. Weekly-threshold math with the half premium keeps payroll compliant.

Professional Interpretation

Managers approve the split; payroll posts the pay lines; HR audits OT frequency by employee.

Recommendations

•Approve the split, not just totals
•Watch sustained 50+ weeks
•Post pay lines to payroll
•Track days-worked for attendance
•Audit OT distribution fairly

Educational Content

Introduction

The Timesheet Calculator turns five daily entries into weekly totals with the standard 40-hour overtime split and time-and-a-half pay.

Concept Explanation

Exact decimal addition gives the total; min/max against 40 splits regular from premium; the 1.5 multiplier prices the premium half.

Applications

▸Approving weekly timesheets

▸Forecasting payroll cost

▸Spotting overtime trends

▸Validating contractor invoices

▸Planning compressed schedules

Benefits

•Automatic 40-hour split
•Premium math built in
•Daily average included
•Attendance count tracked

Limitations

•Federal weekly rule; daily-OT states differ
•Mon–Fri only; weekends separate
•No double-time tiers

Best Practices

•Enter decimals, not clock ranges
•Review OT before approving
•Compare averages across staff
•Export pay lines weekly

Common Misconceptions

Myth: Overtime starts after 8 hours daily.

Truth: Federally it is weekly past 40; some states add daily rules on top.

Myth: Salaried staff skip timesheets.

Truth: Many employers still track hours for costing and compliance.

Myth: 1.5× applies to the whole week.

Truth: Only hours past 40 — the first 40 stay straight time.

Practical Tips

•Enter decimals directly
•Review OT lines first
•Compare team averages
•Export weekly
•Watch 50+ trends
•Count days for attendance
•Pair with Shift for dailies

Common Mistakes

Approving totals without the split

Premium hours hide in totals — read the OT line.

Applying daily-OT assumptions

Federal math is weekly; layer state rules separately.

Clock ranges instead of decimals

Convert ranges to decimals first to avoid AM/PM slips.

Ignoring zero-day patterns

Repeated zeros flag attendance issues early.

Assumptions

This calculator makes the following assumptions to provide estimates:

40-Hour Week: Federal weekly OT threshold.

1.5× Premium: Standard half-rate overtime.

Mon–Fri Scope: Weekends out of scope.

Decimal Entry: Hours entered as decimals.

Limitations

Be aware of these limitations when using this calculator:

No Daily OT: State daily rules not modelled.

No Double Time: Second-tier premiums excluded.

No Weekends: Sat/Sun need separate entries.

Frequently Asked Questions

Answers to common questions about this calculator.

When does overtime start?

Past 40 hours in the Mon–Fri week here, paid at 1.5×. Some states add daily thresholds beyond 8 hours — layer those separately.

How is the 1.5× computed?

Overtime hours × rate × 1.5, which equals straight pay plus a 50% premium on those hours.

What about weekends?

This timesheet covers Mon–Fri. Add weekend shifts via Shift Hours, then combine totals manually.

Can I enter 7.5-hour days?

Yes — decimals to the quarter hour (0.25 steps) are fully supported.

Why is average day total ÷ 5?

It spreads the week evenly for rhythm comparison; days-worked counts actual attendance separately.

Does it handle double time?

No — California-style double-time tiers need manual layering on the OT hours.

How accurate are these date calculations?

All math uses UTC midnight-to-midnight day arithmetic, so daylight-saving shifts never add or remove an hour from a day count. Results are exact for the Gregorian calendar for any date from 1900 through 2100.

Do leap years affect the result?

Yes, automatically. February 29 exists in leap years (divisible by 4, except centuries unless divisible by 400), and every total-days figure in this calculator counts it exactly.

Why do months give uneven results?

Months are 28 to 31 days long, so converting days to months is approximate. This calculator reports exact years, months, and days using calendar arithmetic, plus exact totals in days, weeks, and hours so nothing is hidden by rounding.

Which time zone is used?

Dates are parsed and compared in UTC to keep results identical in every time zone. Enter the calendar date as written; the exact hour of day is not modelled unless a time field is shown.

What date format should I enter?

Use the date picker or YYYY-MM-DD format, for example 2026-09-14. The calculator validates February 30 and similar impossible dates and falls back to today when a field is empty.

Can the end date be before the start date?

If the dates arrive reversed, the calculator swaps them internally and still reports a positive span, so the breakdown always describes the true distance between the two dates.

How does the Timesheet Calculator count business days versus calendar days?

Business days keep Monday to Friday and subtract weekday holidays you enter, while calendar days keep weekends too. The breakdown shows workdays, weekends and holidays separately so payroll can reconcile gross to net.

Which holidays should I enter and how do weekend holidays work?

Enter only observed weekday holidays that fall inside the span, as a count. A holiday on Saturday or Sunday costs no workday, so entering it again would double-subtract and understate payable days.

Can the Timesheet Calculator handle 4-day weeks or part-time schedules?

Yes with an adjustment. Run the standard Mon-Fri count, then scale by your pattern, for example multiply by 0.8 for a 4-day week or by daily hours for part-time. Note the pattern on the saved breakdown.

How are working hours derived from workdays?

Net workdays times hours-per-day gives gross hours, then unpaid break minutes per day are subtracted for net payable hours. Overtime thresholds apply after the standard daily or weekly hours you set.

How does payroll rounding work with decimal hours and HH:MM?

Convert HH:MM to decimal by minutes divided by 60, so 7:30 is 7.5 hours. Many payrolls round to the nearest 6 minutes (0.1 hour) or 15 minutes; round only the final total, not each day, to avoid drift.

What is the difference between Timesheet, Payroll Hours and Overtime tools?

Timesheet collects daily clock spans, Payroll Hours prices them at rates, and Overtime isolates hours above thresholds. Use them in that order for a clean audit from raw punches to paid overtime.

How should shifts that cross midnight be entered?

Split at midnight into two rows or use an overnight-aware time tool, because business-day counts are whole days. Clock spans ending earlier than they start add 24 hours and flag overnight automatically.

How do school days differ from business workdays?

School days follow the academic calendar with term breaks, teacher days and local holidays, not just Mon-Fri minus federal holidays. Verify against the school calendar rather than the generic holiday count.

How do PTO, vacation and sick balances interact with workday counts?

Workday spans measure time owed or taken, while accrual balances measure time earned minus taken with caps. Subtract approved leave workdays from the PTO balance to get remaining availability.

What is the best way to prove a workday total to payroll?

Archive the start and end dates, the inclusive setting, the holiday count with names, and the weeks-times-7-plus-remainder check. Copy the step trace so a reviewer can replay the midnight walk.

Can I plan backward from a deadline to find the latest start date?

Yes. Use subtract business days from the due date with the same holiday count and weekend rule. Add a one to two day buffer for approvals and observed holidays.

How do unpaid lunch breaks affect payable hours?

Only unpaid meal minutes reduce payable time; paid rests stay in gross hours. Enter unpaid minutes per shift and keep paid breaks out of the break field to avoid underpaying.

What if a public holiday falls during vacation or leave?

An observed weekday holiday inside leave is usually not charged to PTO under most policies. Subtract it from the leave workdays and cite the employer policy on the record.

How do I annualize monthly business-day averages?

Sum the 12 monthly business-day counts for the year rather than multiplying one month by 12, because months have 19 to 23 workdays. The monthly average times 12 then reconciles to the true annual total.

Does the Timesheet Calculator account for regional holiday calendars?

Holidays are entered as counts you verify against your observed federal, state or country list, because no single picker covers every region. Check spring and year-end weeks where observed dates shift.

Is the Timesheet Calculator free and does it work for large multi-year spans?

Yes, free with no sign-up on any device, and multi-year spans walk UTC midnights exactly including every Feb 29. For very long HR tenures, also keep the Y/M/D read for anniversary wording.