ACS Freight Calculator
ACS Freight Calculator
Description
ACS Freight Calculator puts a truck freight rate estimator on any page or post. It uses the standard freight rates (“標準的な運賃”) that Japan’s Ministry of Land, Infrastructure, Transport and Tourism notified in March 2024 and that came into force on 1 June 2024.
Add it with the [acsfc_calculator] shortcode, or insert the Freight Calculator block in the editor.
This plugin is complete on its own. Nothing in it is locked, metered, time-limited or reserved for a paid tier, and it never asks for a licence key or an account.
What it calculates
- Ten transport bureaus — Hokkaido, Tohoku, Kanto, Hokuriku-Shinetsu, Chubu, Kinki, Chugoku, Shikoku, Kyushu and the Okinawa General Bureau, each with its own rate table. Okinawa’s own distance steps are handled correctly.
- Four vehicle classes — light truck (2 t), medium truck (4 t), heavy truck (10 t) and trailer (20 t).
- Distance-based fares — table lookup with linear interpolation between steps, plus the per-20 km band above 200 km and the per-50 km band above 500 km.
- Time-based fares — the eight-hour base fare plus charges for extra hours and for distance beyond the included kilometres.
- Loading and unloading charges — by hand or by forklift, billed in 30-minute slots with the higher rate applied past two hours.
- Waiting time charges — the first 30 minutes are free, the rest is billed in 30-minute slots.
- Surcharges — night and early morning (22:00 to 05:00), holidays, winter, and eight classes of special vehicle from refrigerated bodies to high-pressure gas carriers.
- Fuel surcharge — price-band calculation from the diesel price per litre, the distance driven and the vehicle’s fuel efficiency.
- Expressway tolls — entered as an actual cost.
- Consumption tax — subtotal, tax and total are shown as separate lines, with a configurable rate.
- A full breakdown — every line can be expanded to show how the figure was reached.
Privacy and performance
- No external requests. Every rate table is bundled with the plugin. The calculator never calls a remote server, and the plugin sends nothing anywhere.
- No tracking and no accounts. The plugin stores one option row and nothing else. It creates no database tables and no cookies.
- No jQuery and no external libraries. The calculator is written in plain JavaScript, and its stylesheet and script load only on pages that actually contain the calculator.
Please note
The result is a reference figure based on the published standard rates. It is not a quotation and does not replace a contract. Check the current notification for the authoritative values.
Optional add-on
Design and pricing extras — colour customisation, tax display modes and custom charge lines — are sold separately by the author and are not part of this plugin. You never need them: everything described above is included here.
Installation
- Install the plugin through Plugins > Add New, or upload the folder to
/wp-content/plugins/. - Activate it.
- Open Settings > Freight Calculator and choose the transport bureau and vehicle class that should be selected first.
- Add
[acsfc_calculator]to a page or a post, or insert the Freight Calculator block.
Screenshots

The calculator on the front end: transport bureau, vehicle class, distance, loading and waiting times, surcharges and pass-through costs.

The result: every charge on its own line, subtotal, consumption tax and total, with a breakdown that shows how each figure was reached.

Time-based fare, for multi-stop rounds and collections, with hours on duty and distance driven.

Inserting the Freight Calculator block in the editor, with its starting values in the block sidebar.

The settings screen: heading, default transport bureau and vehicle class, consumption tax rate and the optional credit line.
Faq
The standard freight rates notified by Japan’s Ministry of Land, Infrastructure, Transport and Tourism in March 2024, in force from 1 June 2024.
No. All rate tables are bundled with the plugin and the whole calculation runs in the visitor’s browser. The plugin makes no outbound HTTP request at all.
Yes. The Okinawa General Bureau uses its own distance steps, starting at 5 km and moving in 10 km steps above 200 km, and the calculator follows them.
Yes. Each shortcode or block renders an independent calculator.
Yes, in Settings > Freight Calculator, or per instance with [acsfc_calculator region="kinki" vehicle="large"].
No. The calculator is plain JavaScript with no dependencies.
A single option row named acsfc_settings. Uninstalling the plugin deletes it.
Reviews
Changelog
1.0.0
- First release.
- Rate tables for ten transport bureaus and four vehicle classes.
- Distance-based and time-based fares, loading, unloading and waiting charges, night, holiday, winter and special vehicle surcharges, fuel surcharge and expressway tolls.
- Shortcode and editor block, with a full calculation breakdown.