How to Use the Time Conversion Calculator
Type a value into the Value field, choose the unit you are converting from in From, and choose the unit you want in To. The converted value appears instantly, with the equivalent amount in all four units shown beneath it. Use Swap to reverse the direction — for example, hours to minutes becomes minutes to hours.
Seconds to Minutes
Formula: seconds ÷ 60. Example: 90 seconds ÷ 60 = 1.5 minutes.
Minutes to Hours
Formula: minutes ÷ 60. Example: 150 minutes ÷ 60 = 2.5 hours.
Hours to Minutes
Formula: hours × 60. Example: 2.5 hours × 60 = 150 minutes.
Hours to Seconds
Formula: hours × 3,600. Example: 2 hours = 7,200 seconds.
Hours to Days
Formula: hours ÷ 24. Example: 48 hours = 2 days.
Days to Hours
Formula: days × 24. Example: 1.5 days = 36 hours.
Time Conversion vs Decimal Hours
The Time Conversion Calculator converts between time units — seconds, minutes, hours and days. The Decimal Hours Calculator specifically converts between hours:minutes and decimal-hour notation for payroll. Use this tool to switch units; use the Decimal Hours Calculator for hours-and-minutes to decimal work.
Time Conversion vs Hours Calculator
The Time Conversion Calculator converts one unit of time into another. The Hours Calculator adds, subtracts and totals duration values. Use this tool to convert a single value; use the Hours Calculator to do arithmetic on durations you already have.
Common Time Conversion Mistakes
- Treating 1 hour as 100 minutes. An hour is 60 minutes, so 1.5 hours is 90 minutes, not 150.
- Treating 30 minutes as 0.30 hours. 30 ÷ 60 = 0.5, so 30 minutes is 0.5 hours, not 0.30 hours.
- Forgetting 1 hour = 3,600 seconds. 2 hours is 7,200 seconds, not 7,200 ÷ 60.
- Forgetting 1 day = 24 hours. 48 hours is 2 days; 1.5 days is 36 hours.
- Rounding too early. Convert first, then round for display. Rounding mid-step can drift the final figure.
FAQs
- How many seconds are in a minute?
- There are 60 seconds in one minute.
- How many minutes are in an hour?
- There are 60 minutes in one hour.
- How many seconds are in an hour?
- There are 3,600 seconds in one hour (60 minutes × 60 seconds).
- How many hours are in a day?
- There are 24 hours in one day. This calculator treats a day as exactly 24 hours.
- How do I convert seconds to minutes?
- Divide the seconds by 60. For example, 90 seconds ÷ 60 = 1.5 minutes.
- How do I convert minutes to hours?
- Divide the minutes by 60. For example, 150 minutes ÷ 60 = 2.5 hours.
- How do I convert hours to minutes?
- Multiply the hours by 60. For example, 2.5 hours × 60 = 150 minutes.
- How many hours is 90 minutes?
- 90 ÷ 60 = 1.5, so 90 minutes is 1.5 hours.
- How many minutes is 2.5 hours?
- 2.5 × 60 = 150, so 2.5 hours is 150 minutes.
- How many hours is 1.5 days?
- 1.5 × 24 = 36, so 1.5 days is 36 hours.