Use this electronics calculation for a first-pass component, converter, signal, motor, or sensor estimate when the stated operating conditions and units match the device data.

Observed on-wire bits (bit)

Required integer input.

Bus bit rate (bit/s)

Required number input.

Observation duration (s)

Required number input.

Calculate measured CAN bus utilization from total transmitted on-wire bits, link bit rate, and observation duration; bit stuffing must already be counted. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Measured bus load (%)

The resulting measured bus load returned as a number.

• CAN timing and loading depend on oscillator tolerance, transceiver delays, propagation, bit timing, cable impedance, topology, termination, frame mix, and error traffic. Nominal bitrate-versus-length rules do not establish interoperability or standards compliance.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check the result against the current datasheet and worst-case operating corners, then verify the circuit or measurement with simulation and bench testing where failure matters.

• Bus Utilization

  Calculate percent of an observation interval during which a bus was busy. Busy and total duration must use the same unit; utilization does not by itself reveal useful payload throughput.

• Battery State Of Health

  Calculate battery state of health as measured full-charge capacity divided by rated new capacity, expressed as a percentage; values over 100% can be valid measurements.

• MOST Bus Bandwidth

  Estimate usable MOST payload bandwidth from gross link bit rate and measured or specified payload-efficiency fraction.