18 hours 21 minutes in decimal

This online tool will help you convert time given in hours and minutes to decimal hours and/ or decimal minutes.



18 hours 21 minutes is 18.35 hours or 1101 minutes.

Related: Convert from Decimal to hours and minutes

Hours and minutes to Decimal conversion

To convert to decimal hours, add (minutes ÷ 60) to the hours number. So, 18 hours 21 minutes is 18 + 21 ÷ 60 = 18.35 hours.

To convert to minutes, simply multiply the hours by 60 and add the minutes. So, 18 × 60 + 21 = 1101 minutes.

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