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Interface Counter Delta Analyzer

Calculate per-direction throughput and utilization from two 32-bit or 64-bit octet-counter snapshots. Work locally without uploading network information.

Runs entirely on your deviceNo uploads, accounts, cookies, or personal tracking.

Analyze interface counter deltas

Local processing · no input storage

Network tools
Enter the value to evaluate.
Select the format or assumption to use.
Select the format or assumption to use.
Tab-separated interface, link Mbps per direction, earlier RX octets, later RX octets, earlier TX octets, later TX octets. Counter discontinuity must be checked separately.

Counters use exact integer arithmetic. Intervals long enough for a full wrap at line rate are rejected. Assumes full duplex and stable speed; octet utilization does not include all wire overhead.

Text lists: up to 500 non-empty lines and 256 KiB per field. Tabular results: up to 5,000 rows.

Enter your data, then select analyze interface counter deltas.

Technical reference: RFC 2863 — interface counters and discontinuities

1. Add your data

Enter your network data or load the worked example.

2. Choose the result

Analyze interface counter deltas and review the result and assumptions.

3. Save it locally

Copy the result or download it for your engineering workflow.

About this tool

Use Interface Counter Delta Analyzer without an upload

Calculate per-direction throughput and utilization from two 32-bit or 64-bit octet-counter snapshots. Work locally without uploading network information.

The operation runs in the current browser tab. Tool input is not included in aggregate analytics, and the standalone download makes no analytics requests.

Network toolsDeveloper tools