Minutes to Hours Calculator

How to use this tool

1. Type the minutes. The decimal hours, the hours-and-minutes split, the clock format and the fraction of an hour all update as you type. There is no Calculate button. The chips underneath fill in common values in one tap.
2. Got more than one entry? Switch to Add up a list. Paste a column of minutes from a spreadsheet, an app export or your own notes, one per line. Words on the line, like a day or a client name, are kept as the label and the last number is read as the minutes.
3. Set the rounding your employer or client uses. Exact is the default. Payroll usually rounds to the nearest 5 minutes, tenth of an hour or quarter hour. Client billing usually rounds every entry up. With a list you can also choose whether the rounding applies to each entry or to the total, and the tool shows you what the other choice would have given.
4. Add an hourly rate if you want the pay figure, then download the PDF (your result plus a printed 1 to 60 minute chart) or copy the result with a link that reopens the calculator with your settings.

Why this tool is different from other minutes to hours calculators

Most pages for this search are a single box that divides by 60. That answers the textbook question, but the people typing it are usually filling in a timesheet, an invoice or a payroll run, and the division is the easy part. Here is what this one adds:

• A whole time log at once. Paste a week of entries and get each one and the total in decimal hours, instead of converting them one by one and adding them up by hand.
• The rounding real timesheets use. Nearest 5 minutes, tenth hour or quarter hour for payroll, or always-up 6 and 15 minute increments for billing. For a list it shows both round-each-entry and round-the-total, because they often disagree.
• A check for the most common timesheet error. If you were about to write 7 hours 45 minutes as 7.45, the tool tells you how many minutes that would quietly cost.
• A printable chart. The PDF carries a 1 to 60 minute conversion chart with the decimal and the tenth-hour figure, checked row by row against a state labor department's published chart. Pin it next to the time clock.
• An embeddable widget. HR teams, school offices and payroll bloggers can put the whole calculator on their own page with one line of HTML.

How this tool works (the math)

An hour is defined as exactly 60 minutes, so the conversion itself is one division:

hours = minutes ÷ 60

135 minutes is 135 ÷ 60 = 2.25 hours. Some results never end: 100 minutes is 1.6666… hours, because a third of an hour cannot be written as a finite decimal. The tool shows those to the number of places you choose (two is the payroll standard) and says when a figure is repeating.

The hours-and-minutes view works from whole seconds, so a value like 59.999 minutes reads as 1:00 rather than an impossible 0:59:60. The fraction view reduces the result, which is why 135 minutes shows as 2 1/4 h and 100 minutes as 1 2/3 h.

Rounding to a step of k minutes (5, 6 or 15) uses:

nearest: k × round(minutes ÷ k) · always up: k × ceil(minutes ÷ k)

A value exactly halfway rounds up. At quarter hours that produces the familiar 7-minute rule: 7 minutes past rounds down to the quarter, 8 minutes rounds up to the next one. At tenths, 2 minutes rounds down and 3 minutes rounds up to 0.1 hour.

US federal rules allow this. Under 29 CFR 785.48(b), recording start and stop times to the nearest 5 minutes, tenth or quarter of an hour is accepted as long as it does not, over time, leave employees paid for less time than they worked. That is why the payroll option rounds to the nearest step in both directions. Always rounding down is not offered. Always rounding up is labelled for billing, where it is a normal agreement between you and a client.

Four real conversions, run through the tool

A 135-minute meeting on an invoice

135 minutes is 2.25 hours, which is 2 hours 15 minutes or 2 1/4 hours. If the invoice template wants decimal hours, the figure is 2.25, and the timesheet check points out that typing 2.15 instead would bill 2 hours 9 minutes, six minutes short.

A week of shifts from a time log

Paste Monday to Friday as 465, 482, 451, 497 and 430 minutes and the total is 2,325 minutes, or 38.75 hours. Turn on quarter-hour rounding and nothing changes: the five entries round to 465, 480, 450, 495 and 435, which still add to 2,325. Switch to tenth-hour rounding and the week becomes 2,328 minutes, or 38.80 hours, because three of the five days tip upward. Small, but it is the kind of difference that makes an employee's own tally disagree with the pay stub.

Three one-minute phone calls, billed in tenths

A lot of professional billing rounds every entry up to the next 6-minute step. Three one-minute calls are 3 minutes, or 0.05 hours, of actual time. Billed per entry, each call becomes 0.1 hours and the three together bill 0.3 hours. Rounding the total instead bills 0.1. The tool shows both lines so you can see exactly what your engagement letter is agreeing to.

The 7.45 mistake, priced

Someone works 7 hours 45 minutes, which is 465 minutes and 7.75 hours. On a form that wants decimal hours they write 7.45. Payroll reads that as 7 hours 27 minutes, so 18 minutes go unpaid. At 20 dollars an hour that is 6 dollars a shift, and it repeats every time the same habit hits the same form. Add the rate in the tool and it does this arithmetic for you. If you keep the paper version of the log, a planner with an hourly layout is the easiest place to write the minutes down the moment they happen.

Minutes to decimal hours chart

Every minute from 1 to 60 as a decimal of an hour, rounded to two places. These match the North Carolina Department of Labor's published conversion chart row for row. The PDF version adds a tenth-hour column.

Frequently asked questions

How do I convert minutes to hours?

Divide the minutes by 60. 90 minutes is 1.5 hours, 45 minutes is 0.75 hours and 480 minutes is an 8-hour shift. If you need hours and minutes instead of a decimal, the whole number is the hours and whatever is left over from 60 is the minutes: 135 minutes is 2 hours with 15 left over.

What is 45 minutes as a decimal of an hour?

0.75. Fifteen minutes is 0.25, thirty is 0.50 and forty-five is 0.75, which is why quarter-hour timesheets only ever end in .00, .25, .50 or .75. Anything else, like 20 minutes at 0.33, is a repeating decimal that payroll systems cut to two places.

How do I write 7 hours 45 minutes on a timesheet?

As 7.75, if the timesheet wants decimal hours. Writing 7.45 records 7 hours 27 minutes and loses 18 minutes. If the form has separate hours and minutes boxes, or asks for H:MM, then 7:45 is correct. The colon is the giveaway: a colon means minutes follow, a decimal point means hundredths of an hour follow.

What is the 7-minute rule?

It is quarter-hour rounding stated as a rule of thumb. When time is rounded to the nearest 15 minutes, 1 to 7 minutes past a quarter rounds back down and 8 to 14 minutes rounds forward to the next quarter. Federal rules accept it because it averages out over time; your state and your employer's written policy can be stricter. Set the tool to Quarter and Nearest to apply it.

How do I convert minutes to tenths of an hour?

A tenth of an hour is 6 minutes. Divide the minutes by 6, round to the nearest whole number, and put a decimal point in front: 0 to 2 minutes is 0.0, 3 to 8 minutes is 0.1, 9 to 14 minutes is 0.2, and so on up the hour. Set the tool to Tenth for the payroll version, or to Tenth and Always up for the billing version, where any part of a 6-minute block counts as the whole block.

Related tools

• Daily Schedule Template: an hour-by-hour planner PDF built around your own start time and 15, 30 or 60 minute slots.
• Receipt Generator: turn the billed hours into an itemized receipt PDF.
• Reading Log Printable: a minutes-per-day log for readers and classrooms, with a choice of printable layouts.
• Browse all free tools by Sarah Chen

Sarah's picks for keeping time on paper

Time that gets written down once, in one place, is time that converts cleanly at the end of the week. These are the roundups I point office managers to:

• Best Calculators: a dedicated desktop calculator is still faster and less error-prone than a phone for a week of payroll entries. The roundup separates basic desktop models from scientific, graphing and financial ones, so you are not paying for functions an office never uses.
• Best Planners: daily planners with an hourly layout double as a time log. The roundup covers daily, weekly and undated formats.
• Best Desk Calendars: a desk pad keeps the pay-period dates and cut-off days in front of whoever runs payroll.

Methodology & sources

• Conversion: hours = minutes ÷ 60. The hour is defined as 60 minutes and the minute as 60 seconds in the BIPM SI Brochure (9th edition, Table 8, non-SI units accepted for use with the SI).
• Rounding: nearest-step rounding (5 minutes, tenth hour, quarter hour) as described in 29 CFR 785.48(b). Halfway values round up. Billing round-up uses the ceiling of the same step.
• Cross-check: all 60 rows of the North Carolina Department of Labor minutes to decimal hours chart reproduce exactly. Some charts that circulate online do not: one widely shared version prints 50 minutes as 0.84 hours, where the correct figure is 0.83.
• Tested on every build: 114 test fixtures (the full state chart, conversions, the seconds carry, every rounding step in both directions, list totals, the timesheet check and pay) run via scripts/validate-tool-fixtures.mjs. If one drifts, the site does not build.

About rounding: the rounding options follow the federal rule as a convenience. Your employer's written timekeeping policy and your state's wage law govern, and some states are stricter than the federal rule. When in doubt, pay or bill the exact time. About Sarah Chen · Last reviewed October 23, 2026.

Embed this tool on your site

Free for HR and payroll teams, school offices, freelancers' guides and anyone writing about timesheets. Required attribution is included in the snippet. No fee, no signup, no tracking attached to the embed.

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