Hours Calculator

Enter the hours and minutes for each shift or task. Leave unused entries at zero. Minutes are 0 to 59 per entry.

Updated October 27, 2026

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<iframe src="/embed/en/time-date/hours-calculator/" width="480" height="640" title="Hours Calculator" loading="lazy" style="border:0;max-width:100%"></iframe>
<script>window.addEventListener('message',function(event){if(event.origin!==''||!event.data||event.data.type!=='calc-embed-height')return;var f=document.getElementsByTagName('iframe');for(var i=0;i<f.length;i++){if(f[i].contentWindow===event.source){f[i].style.height=event.data.height+'px';}}});</script>

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Formula

total minutes = sum of (hours × 60 + minutes) over all entries

decimal hours = total minutes ÷ 60

Worked example

7 h 30 min, 8 h 15 min and 6 h 45 min: (450) + (495) + (405) = 1,350 minutes. That is 22 hours 30 minutes, and 1,350 ÷ 60 = 22.5 decimal hours.

Frequently asked questions

How do I convert hours and minutes to decimal hours?

Divide the minutes by 60 and add them to the hours. 7 hours 30 minutes is 7 + 30 ÷ 60 = 7.5 hours, and 20 minutes is 0.33 hours.

How do I add up hours and minutes?

Add all the hours, add all the minutes, then carry every 60 minutes into an hour. 7h30 + 8h15 + 6h45 is 21 hours 90 minutes, which is 22 hours 30 minutes.

Why use decimal hours?

Pay and billing are usually rate times hours, so decimals are easier to multiply. 22.5 hours at a rate of 20 is 450.

Why must minutes be below 60?

A full 60 minutes is one hour, so enter it as 1 hour. Use the hours field for anything of an hour or more.

How we calculate

Hours Calculator

Formula

Worked example

Frequently asked questions

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