The full quarter-hour conversion chart
Below is the complete decimal time conversion chart in 15-minute steps from 0:15 all the way to 12:00, showing clock time, decimal hours and total minutes side by side. It covers every value a quarter-hour rounding payroll system can produce, including the everyday anchors like 7:30 (7.5), 8:15 (8.25) and 8:45 (8.75). Find the row, read across, done.
The chart reads in both directions. Coming from a timesheet, look up the clock time and take the decimal; coming from a paycheck or report, find the decimal and read the clock time back. Because the three columns agree by construction, it is also a quick way to teach the pattern: each 15 minutes is exactly .25 of an hour.
Why 15-minute steps cover most payroll
The majority of time-and-attendance systems round punches to the nearest quarter hour, so paid time almost always lands on a value in this chart. That includes the big payroll providers and most scheduling apps — their reported decimals are simply rows of this table. When a figure is not on the chart, it means the underlying system tracked exact minutes, and the converters on this site handle those values to four decimal places.
For staff who total handwritten timecards, the chart doubles as an adding aid: convert each day's minutes using the rows, add the decimals, and the weekly total is ready to enter. Auditors use it the opposite way — decode a payroll decimal into minutes and compare it with the original punches.
Related tools for values off the chart
Need a value between rows? The decimal hours calculator converts any hours-and-minutes entry in both directions, and the minutes page lists every single minute from 1 to 60. For full-week totals with an hourly rate, the time card calculator does the arithmetic and estimates gross pay. All three work on mobile and store nothing you type.
A tip worth keeping: the four quarter-hour decimals — .00, .25, .50, .75 — plus the whole hours make up over ninety percent of real timesheet entries. Learn those from this chart and you will rarely need any tool for day-to-day conversions; the calculators are for the long tail and for double-checking.