Accurate Payroll & Invoicing Tool

Hour to Decimal Conversion Chart

Instantly convert hours and minutes into decimal format with live step-by-step formulas, interactive range generation, and a 60-minute reference chart.

Direct Answer

How Do You Convert an Hour and Minutes to Decimal Time?

To convert an hour and minutes to decimal hours, leave the hour number unchanged and divide the minutes by 60. Add the decimal result to the hours. For example, 3 hours and 45 minutes equals 3 + (45 ÷ 60) = 3.75 decimal hours.

Decimal Hours = Hours + (Minutes ÷ 60)
1 hr 12 min → 1.20 hours
2 hr 30 min → 2.50 hours
4 hr 45 min → 4.75 hours
7 hr 48 min → 7.80 hours

Hour & Minute to Decimal Converter

Calculated Decimal Hours
3.7500 hr
Conversion Formula & Steps
Hours: 3 hr
Minutes: 45 min ÷ 60 = 0.7500 hr
Sum: 3 + 0.7500 = 3.7500 decimal hours
Recent Conversions

    Custom Hours Range Generator

    Generate a tailored grid showing decimal conversions across standard 15-minute intervals.

    Quick Ranges:

    Reverse: Decimal Hours to HH:MM

    Convert decimal numbers (e.g. 7.75 hr) back into standard hours and minutes.

    60-Minute Conversion Table

    Click any row to auto-fill the converter on the left.

    Minutes (min) Decimal Fraction Auto-Fill
    0 min0.0000 hr (0.00)
    1 min0.0167 hr (0.02)
    2 min0.0333 hr (0.03)
    3 min0.0500 hr (0.05)
    4 min0.0667 hr (0.07)
    5 min0.0833 hr (0.08)
    6 min0.1000 hr (0.10)
    7 min0.1167 hr (0.12)
    8 min0.1333 hr (0.13)
    9 min0.1500 hr (0.15)
    10 min0.1667 hr (0.17)
    11 min0.1833 hr (0.18)
    12 min0.2000 hr (0.20)
    13 min0.2167 hr (0.22)
    14 min0.2333 hr (0.23)
    15 min0.2500 hr (0.25)
    16 min0.2667 hr (0.27)
    17 min0.2833 hr (0.28)
    18 min0.3000 hr (0.30)
    19 min0.3167 hr (0.32)
    20 min0.3333 hr (0.33)
    21 min0.3500 hr (0.35)
    22 min0.3667 hr (0.37)
    23 min0.3833 hr (0.38)
    24 min0.4000 hr (0.40)
    25 min0.4167 hr (0.42)
    26 min0.4333 hr (0.43)
    27 min0.4500 hr (0.45)
    28 min0.4667 hr (0.47)
    29 min0.4833 hr (0.48)
    30 min0.5000 hr (0.50)
    31 min0.5167 hr (0.52)
    32 min0.5333 hr (0.53)
    33 min0.5500 hr (0.55)
    34 min0.5667 hr (0.57)
    35 min0.5833 hr (0.58)
    36 min0.6000 hr (0.60)
    37 min0.6167 hr (0.62)
    38 min0.6333 hr (0.63)
    39 min0.6500 hr (0.65)
    40 min0.6667 hr (0.67)
    41 min0.6833 hr (0.68)
    42 min0.7000 hr (0.70)
    43 min0.7167 hr (0.72)
    44 min0.7333 hr (0.73)
    45 min0.7500 hr (0.75)
    46 min0.7667 hr (0.77)
    47 min0.7833 hr (0.78)
    48 min0.8000 hr (0.80)
    49 min0.8167 hr (0.82)
    50 min0.8333 hr (0.83)
    51 min0.8500 hr (0.85)
    52 min0.8667 hr (0.87)
    53 min0.8833 hr (0.88)
    54 min0.9000 hr (0.90)
    55 min0.9167 hr (0.92)
    56 min0.9333 hr (0.93)
    57 min0.9500 hr (0.95)
    58 min0.9667 hr (0.97)
    59 min0.9833 hr (0.98)
    Showing all 60 minute increments (0–59 min).

    Related Conversion Tools

    Hour to Decimal Conversion Formula & Comprehensive Guide

    Converting standard hours and minutes into decimal format is a vital calculation for payroll processing, legal client billing, and timecard auditing.

    The Mathematical Formula:
    Decimal Hours = Hours + (Minutes ÷ 60)
    Example: For 5 hours and 36 minutes:
    1. Divide minutes by 60: 36 ÷ 60 = 0.60
    2. Add to whole hours: 5 + 0.60 = 5.60 decimal hours
    Standard Quarter Hours
    15 min = 0.25 hr
    30 min = 0.50 hr
    45 min = 0.75 hr
    6-Minute Tenths
    6 min = 0.10 hr
    12 min = 0.20 hr
    18 min = 0.30 hr
    FLSA 7-Minute Rule
    1–7 min = Round down (0.00)
    8–14 min = Round up (0.25)

    Frequently Asked Questions

    How do I convert hours and minutes to decimal hours?
    Keep the integer hours unchanged and divide the minutes by 60. For example, 2 hours and 30 minutes equals 2 + (30 ÷ 60) = 2.50 decimal hours.
    Why do payroll systems require decimal hours instead of HH:MM?
    How do I reverse convert decimal hours back to HH:MM?
    Can I copy or export this conversion chart?