Integer Clock Divider Calculator
Find the nearest valid integer divider for a target clock, showing actual rate and signed error.
YOUR CALCULATION
Result
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Calculation steps
Work through one step at a time or reveal the complete calculation. The steps use your current inputs.
How to calculate
Compare adjacent integer divisors, including allowed endpoints, and choose the lower divisor on an exact error tie.
fout=fsource/divisor; choose floor or ceiling of source/target by absolute frequency error
Worked example
48 MHz divided by 1088 gives about 44117.6471 Hz, about +400.160064 ppm relative to a 44.1 kHz target.
Assumptions and input details
Only fsource/N hardware with N from 1 to the entered maximum; no prescaler, fractional divider, toggling factor or device-specific register offset. Source tolerance and jitter are excluded.
Unit definitions
Unit selection is independent of language. Each selector contains only units for its physical quantity. Calculations use defined base units internally.
SI prefixes are explicit: for example, milli means one thousandth, micro one millionth and kilo one thousand. Changing a unit changes the interpretation of the entered number.
Using this calculator
Can I enter my own problem?
Yes. Replace the example values with your own inputs. The result, calculation steps, tables and applicable diagrams update from those inputs. Blank or invalid values clear the result; example values are never silently substituted for missing inputs.
Are the results exact?
Results use floating-point arithmetic and displayed rounding. Read the formula, assumptions and any stated data precision before interpreting the result.
Is my input uploaded?
The calculation runs in your browser. No account, file upload or external AI service is required. Inputs are not saved between page reloads.
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