Free Monthly Timesheet Calculator

Use the free calculator below to total hours and pay across an entire month, or keep reading to learn the formula and calculate it yourself. Whether you're a contractor invoicing once a month or a manager reconciling a salaried employee's hours, adding up a month's worth of daily entries by hand is exactly the kind of task that's easy to get wrong once it stretches past a week or two.

What Is a Monthly Timesheet?

A monthly timesheet is a record of every hour worked across a calendar month, used to calculate total hours and total pay for that period. It's most common for businesses on a monthly pay period, for tracking salaried employees, and for contractors who invoice once a month instead of weekly or biweekly.

The Monthly Timesheet Formula

Total Hours = Sum of Daily Hours Worked
Total Pay = Total Hours × Hourly Rate

For example, an employee who logs 8 hours a day across 21 working days in a month has worked 168 total hours. At a $25 hourly rate, that comes out to:

168 × $25 = $4,200

📅 Monthly Timesheet Calculator

Set your hourly rate, then log hours for each day worked. Totals update automatically.

Employee Name

Month

Hourly Rate ($)

Date	Hours Worked	Daily Pay
		$0.00
		$0.00
		$0.00
		$0.00
		$0.00
Total	0.00 hrs	$0.00

Does a Monthly Total Handle Overtime?

Not on its own, and this is the single biggest trap in monthly timesheet math. Overtime is always calculated against the workweek, never the month, so a monthly total can look completely normal while one specific week buried inside it actually triggered overtime pay. If you need to check for overtime, break the month back out into individual weeks first, or use our Time and a Half Calculator for the overtime portion specifically.

Common Mistakes With Monthly Timesheets

The most common mistake is letting entries pile up for weeks before reviewing them, which makes a missing or wrong entry far harder to catch and correct. A second common mistake is including unpaid breaks in the hours logged, which quietly inflates both total hours and total pay. Mixing time formats, like entering "8:30" in one row and "8.5" in another, is another frequent source of errors, since those two entries don't actually mean the same thing once they're summed. And treating a clean monthly total as proof there's no overtime owed is a mistake on its own, since overtime hides inside individual weeks, not the monthly sum.

How Updoot Automates This

This calculator works well for one person checking their own month. For a full team, automated time tracking removes the need to manually total dozens of daily entries by hand every month. Updoot tracks hours as they're worked, calculates daily, weekly, and California overtime automatically, and rolls everything into a payroll-ready export, so a "monthly total" is always accurate and never depends on someone remembering to add it all up correctly at the end.

Frequently Asked Questions

What is a monthly timesheet? ▶

A monthly timesheet is a record of every hour an employee or contractor worked across a calendar month, used to calculate total hours and total pay for that period. It's most common for monthly pay periods, salaried tracking, and contractors who invoice once a month.

How do you calculate total pay on a monthly timesheet? ▶

Add up every day's hours worked across the month to get total hours, then multiply total hours by the hourly rate to get total pay. For example, 168 total hours at a $25 hourly rate equals $4,200 for the month.

Does a monthly timesheet handle overtime automatically? ▶

Not on its own. Overtime is calculated against the workweek, not the month, so a monthly total has to be broken back out into individual weeks to check for overtime correctly. A simple monthly total can hide a week that actually triggered overtime pay.

Is a monthly timesheet the same as a monthly pay period? ▶

Not exactly. A monthly pay period means employees are paid once a month, while a monthly timesheet is simply a record of hours covering a calendar month, regardless of how often the business actually runs payroll.

What's the easiest way to track hours across an entire month? ▶

For a single person tracking their own hours, a simple table with a row per day works fine, as long as totals are checked regularly rather than all at once at month's end. For a full team, automated time tracking removes the need to manually total dozens of entries by hand.

Should breaks be included in a monthly timesheet? ▶

Unpaid breaks should be excluded from the hours entered, since including them inflates total hours and total pay. Paid breaks, where required by state law or company policy, should be included in the hours worked.

Final Takeaway

A monthly timesheet comes down to adding up daily hours and multiplying by the hourly rate, but the real risk lives in two places: letting entries pile up unreviewed for weeks, and forgetting that overtime hides inside individual weeks, not the monthly total. Use the calculator above to keep a running, accurate total all month long instead of reconstructing it at the end.