Decimal Hours Time Card Calculator

Q: What is 8 hours and 30 minutes in decimal?

8 hours 30 minutes = 8.5 hours (30 divided by 60 = 0.5).

Q: Is the decimal time card calculator free?

Yes, all calculation is free with no sign-up. Excel and CSV export are Pro features in the app.

This free decimal time card calculator adds up your work hours by day and shows them in decimal format — so 8 hours and 15 minutes becomes 8.25 — along with your total hours and pay. No sign-up.

Get the app — more features, more convenient. Want to save your timesheets, export to Excel or CSV, or add your logo to PDF reports? Those are in the app.

App Store Google Play Chrome Web Store

## How to calculate hours in decimal

Enter your Start and End time for each day.
Add your Break, and turn on Deduct breaks to subtract unpaid break time.
(Optional) Turn on Include Payment Information and set your Regular payment rate to see your pay.
Read your totals — the summary shows Total Time in decimal and HH:MM, and your Gross Pay.

What are decimal hours?

Decimal hours express time as a number with a fractional part instead of hours and minutes. Payroll multiplies your rate by your hours, so minutes are converted to a decimal before pay is calculated. To convert minutes yourself, divide by 60 — but the calculator does it for you on every entry.

Decimal hours cheat sheet

Minutes	Decimal
15 min	0.25
30 min	0.50
45 min	0.75
60 min	1.00

So 8:15 = 8.25 hours, 8:30 = 8.50 hours, and 8:45 = 8.75 hours.

Example

You work 9:00 AM to 5:30 PM with a 30-minute unpaid lunch.

9:00 to 5:30 = 8 hours 30 minutes.
Minus a 30-minute break = 8 hours 0 minutes.
In decimal: 8.00 hours.
At a $20.00/hour rate: $160.00 gross pay for the day.

At a glance

Free? Yes — all calculation is free.
Sign-up? No account needed.
Decimal output? Yes — shown alongside HH:MM in the summary.
Works offline? Yes, after the first load.
Platforms: Web, Chrome, iPhone, Android.
In the app (Pro, one-time $6.99): Save timesheets, Excel & CSV export, logo on PDF, backup.

Do more in the app

The web calculator is free for the core math. The apps add Save / My Timesheets, Excel & CSV export, your logo on PDF reports, and data backup — a one-time $6.99, on all your devices (free in some regions).

App Store Google Play Chrome Web Store

## FAQ

How do I convert minutes to decimal hours? Divide the minutes by 60: 15 min = 0.25, 30 min = 0.50, 45 min = 0.75. The calculator does this automatically.

What is 8 hours and 30 minutes in decimal? 8 hours 30 minutes = 8.5 hours (30 ÷ 60 = 0.5).

Does the calculator show both decimal and HH:MM? Yes — the summary shows Regular Time in both formats, for example 10.00 (10:00).

Why do payroll systems use decimal hours? Pay is rate × hours, so minutes are converted to a decimal (8:15 = 8.25) before multiplying by your rate.

Is the decimal time card calculator free? Yes — all calculation is free with no sign-up. Excel and CSV export are Pro features in the app.

Why use decimal hours? Payroll systems multiply decimal hours by the rate, so 8:30 becomes 8.5 for easy pay math.

Is it free? Yes — all calculation is free with no sign-up. Save, Excel/CSV and branded PDF are Pro features in the app.

Do I need to sign up or create an account? No. There’s no registration or login. An email is only used to restore a Pro purchase on another device.

This tool provides estimates and is not legal, tax, or payroll advice.