Minutes-to-Hours Conversion Chart

A meeting invite says the call runs 105 minutes. A treadmill display reads 42 minutes into a session. A video export shows a runtime of 138 minutes. None of those numbers means much until it's converted to hours — and doing that conversion correctly, in the right format, is easy to get subtly wrong.

This page is the reference chart: every minute value from 1 to 60 converted both ways — as a decimal (1.5 hours) and as hours-and-minutes (1 hr 30 min) — plus the longer durations people actually look up. If you want the reasoning behind the conversion rather than a lookup table, How to Convert Minutes to Hours (and Back) walks through the method.

Every minute of the hour, converted to a decimal (rounded to two places) and to hours-and-minutes. The fourth column flags the handful of values that reduce to a clean, memorable fraction of an hour.

Decimal values are rounded to two places — that rounding is fine for reading a chart, but it is not the specific rounding standard payroll systems use for pay periods; for that, see the Payroll Minutes-to-Decimal Conversion Chart.

For a value that isn't on the chart, or to go from hours back to minutes, use the box below.

Not everything fits inside one hour. Flights, workdays, and long meetings run past 60 minutes — here are the durations people convert most often.

1,440 minutes is a full calendar day — for the equivalent counts in hours across a week, month, and year, see How Many Hours Are in a Day, Week, Month, and Year?

A decimal hour splits the hour into 100 equal parts rather than 60. To turn any decimal hour back into minutes, take just the part after the decimal point and multiply it by 60. For 0.75 hours, that's 0.75 × 60 = 45 minutes, so 0.75 hours is 45 minutes past the whole hour. For 0.20 hours, it's 0.20 × 60 = 12 minutes.

The reverse — minutes to decimal — is the same division shown throughout the chart above: minutes ÷ 60.

Most minute counts land on an awkward decimal, but a handful reduce to a fraction worth memorizing, because they come up constantly in scheduling: 15 minutes is a quarter hour (1⁄4), 20 minutes is a third (1⁄3), 30 minutes is a half (1⁄2), 40 minutes is two-thirds (2⁄3), and 45 minutes is three-quarters (3⁄4). The full chart above flags every value from 1–60 that reduces this cleanly.

The same length of time shows up in three common formats, and each fits a different context:

• Decimal hours — 1.5 hr. Standard in spreadsheets, timesheets, and anywhere durations get added or averaged, because decimals are simple to sum.
• Hours and minutes, spelled out — 1 hr 30 min. The clearest form for a human reading a schedule or itinerary at a glance.
• Colon notation — 1:30. Compact, common in video players, timers, and stopwatches — but only unambiguous with context, since 1:30 could also be read as a clock time.

The safest habit: never write a decimal hour value using minute-style numbers after the point. If the number after the decimal is meant to represent minutes directly, it isn't a decimal hour — it's h:mm, and it belongs on the other side of a colon, not a period.

Timesheets and payroll are the biggest source of this exact conversion, but they come with their own rounding rules for pay periods — covered in How to Convert Minutes to Decimal Hours for Payroll. Outside payroll, the same math shows up in project time-tracking, billing by the hour, workout and screen-time trackers, and any spreadsheet that needs to sum up minute-based durations into a single hours total.