# Convert Second to Hour (sec to hr)

In next fields, kindly type your value in the text box under title [ From: ] to convert from second to hour (sec to hr). As you type your value, the answer will be automatically calculated and displayed in the text box under title [ To: ].

From:
To:
Definitions:

Second (abbreviations: sec, or s, or s (SI), or sec (US)): is the base unit of time in the International System of Units (SI, Système International d'Unités). It is the second division of the hour by sixty, where the first division by sixty being the minute.

Hour (abbreviations: hr, or h): is a unit of time, conventionally counted as 1/24 of a day. In the modern metric system, it is equivalent to 3,600 seconds.

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## How to Convert Seconds to Hours

### Example: How many hours are equivalent to 30.8 seconds?

As;

1 seconds = 0.000277777 hours

30.8 seconds = Y hours

Assuming Y is the answer, and by criss-cross principle;

Y equals 30.8 times 0.000277777 over 1

(i.e.) Y = 30.8 * 0.000277777 / 1 = 0.0085555316 hours

Answer is: 0.0085555316 hours are equivalent to 30.8 seconds.

### Practice Question: Convert the following units into hr:

N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.

( i ) 36.34 sec

( ii ) 72.17 sec

( iii ) 75.44 sec

References
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