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Time to Decimal Hours Converter

Convert between time formats (8:30) and decimal hours (8.5) with payroll calculations, timesheet processing, and billing features. Perfect for HR, payroll, legal billing, and time tracking.

Input: 0 entries
Time or Decimal Hours
Conversion Results

Configuration

💰 Payroll Calculator

⚡ Quick Conversions

Time → Decimal
Decimal → Time

Common Use Cases

Daily Timesheet
Monday: 8:15 Tuesday: 7:45 Wednesday: 8:30 Thursday: 8:00 Friday: 7:30
Legal Billing
2:23

Rounds to 2.4 hours (6-min increments)

Project Tasks
Task A: 2:15 Task B: 1:45 Task C: 3:30
Consulting Hours
4:45

Client billing calculation

Manufacturing Shift
7:30

Production time tracking

Overtime Week
8:30 8:15 9:00 8:45 8:30 4:00

How It Works

Privacy First

This time to decimal hours converter processes your data entirely in your browser. No data is uploaded to any server, ensuring complete privacy and security.

Lightning Fast

Instant processing with real-time validation and error detection. No waiting, no delays - just immediate results.

Versatile Use Cases

  • Calculate payroll for hourly employees with precise decimal hours
  • Convert timesheet entries from time format to decimal for payroll systems
  • Legal billing in 6-minute (0.1 hour) increments for law firms

Mobile Friendly

Responsive design that works perfectly on all devices and screen sizes. Touch-friendly interface for mobile users.

Frequently Asked Questions

How do I convert 8:30 to decimal hours?
8:30 means 8 hours and 30 minutes. Since 30 minutes = 0.5 hours (30÷60), the result is 8.5 decimal hours. Use this for payroll and billing systems.
What are legal billing increments and why use them?
Legal billing uses 6-minute increments (0.1 hour = 6 minutes). This means 1-6 minutes = 0.1 hours, 7-12 minutes = 0.2 hours, etc. This standardizes billing across the legal industry.
How do I calculate overtime pay with decimal hours?
For hours over 40/week: Regular pay = 40 × hourly rate. Overtime pay = (total hours - 40) × hourly rate × 1.5. Total = regular + overtime pay.
What decimal precision should I use for payroll?
Most payroll systems use 2 decimal places (8.50 hours). Some use 3 decimals for high precision. Legal billing typically uses 1 decimal (8.5 hours).
How do I handle break time in time calculations?
Subtract break time from total shift time. Example: 9:00 AM - 5:00 PM = 8 hours, minus 30-minute lunch = 7.5 working hours = 7.50 decimal hours.
Can I convert multiple time entries at once?
Yes, use batch mode to process multiple entries. Enter each time on a new line (8:30, 7:45, 8:15) and get totals plus individual conversions.
What's the difference between rounding modes?
Standard: normal rounding. Legal: 6-minute increments. Payroll: company-specific rules. Quarter: 15-minute blocks. Tenth: 6-minute blocks.
How do I handle AM/PM time formats?
Enter times as "8:30 AM" or "2:15 PM". The tool automatically converts to 24-hour format (08:30, 14:15) then to decimal hours.
Can I calculate pay for different hourly rates?
Yes, enter your hourly rate and the tool calculates total pay automatically. For multiple rates, process each rate category separately.
How accurate are the decimal conversions?
Conversions are mathematically precise. 1 minute = 0.016667 hours, but display rounds to your chosen precision (1-4 decimal places).

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