{ "table": "cbm-calculator-units", "schema": 1, "version": "2026-11-11.1", "title": "Units of length, volume and mass for a CBM calculation, as French and United Kingdom law define them", "doc": "Unit table read by the cbm-calculator handlers computeCbm and exportCbmCsv (ctx.data['cbm-calculator-units']). length_units..metres is the length of one unit in metres, as an exact decimal string; mass_units..kilograms is the mass of one unit in kilograms; volume_units.ft3.cubic_metres is the cubic foot in cubic metres, derived exactly from the foot. The metric units are the units of the Système international, defined in France by décret n° 61-501 and in the United Kingdom by Schedule 1 of the Weights and Measures Act 1985. The inch, the foot and the pound are defined by Part VI of that Schedule, which extends to the whole United Kingdom: yard = 0.9144 metre, foot = 1/3 yard (0.3048 m), inch = 1/36 yard (0.0254 m), cubic foot = 1/27 cubic yard, pound = 0.453 592 37 kilogram. countries..trade_units records which units may be used for trade in each country; the handler shows a note when a person works in inches, feet or pounds, and does not branch on anything else. No freight ratio (kilograms per cubic metre) is stored: it is a commercial term of each carrier's tariff, which the person types from their own quote. Every value carries its legal basis, its official source_url, the source's own date (source_date), the date it was retrieved (retrieved_on), valid_from and valid_until (null: no end date set by the source). The table-level valid_until is a review date, not a known change. The factors have not changed: in the United Kingdom, Part VI of Schedule 1 has stood in its current form since 1 January 2000 and the Schedule was last amended on 13 June 2020; in France, art. 3 and 8 of décret n° 61-501 date from décret n° 2009-1234 (17 October 2009) and art. 2 from décret n° 2020-709 (13 June 2020, the new SI definitions, which did not change the size of the metre or the kilogram). Known future change: the Product Regulation and Metrology Act 2025, s. 11(3), will omit s. 8(1)(a) and Schedule 1 of the 1985 Act on a day to be appointed under its s. 15; it was not in force on 2026-11-11 (see countries.GB.trade_units.pending).", "reviewed_on": "2026-11-11", "reviewed_by": "apps agent (automated research against official sources, 2026-11-11); owner review pending", "valid_from": "2026-11-11", "valid_until": "2027-11-11", "locale_country": { "fr-FR": "FR", "en-GB": "GB" }, "length_units": { "mm": { "metres": "0.001", "symbol": "mm", "definition": "Millimetre = 1/1000 metre", "legal_basis": "Décret n° 61-501, art. 2 and 6 (multiples and sub-multiples); Weights and Measures Act 1985, Sch. 1, Pt. I", "source_url": "https://www.legislation.gov.uk/ukpga/1985/72/schedule/1", "source_date": "2020-06-13", "retrieved_on": "2026-11-11", "valid_from": "1995-10-01", "valid_until": null }, "cm": { "metres": "0.01", "symbol": "cm", "definition": "Centimetre = 1/100 metre", "legal_basis": "Décret n° 61-501, art. 2 and 6 (multiples and sub-multiples); Weights and Measures Act 1985, Sch. 1, Pt. I", "source_url": "https://www.legislation.gov.uk/ukpga/1985/72/schedule/1", "source_date": "2020-06-13", "retrieved_on": "2026-11-11", "valid_from": "1995-10-01", "valid_until": null }, "m": { "metres": "1", "symbol": "m", "definition": "Metre, the SI unit of length", "legal_basis": "Décret n° 61-501, art. 2; Weights and Measures Act 1985, Sch. 1, Pt. I", "source_url": "https://www.legifrance.gouv.fr/loda/id/JORFTEXT000000501821", "source_date": "2020-06-13", "retrieved_on": "2026-11-11", "valid_from": "2020-06-13", "valid_until": null }, "in": { "metres": "0.0254", "symbol": "in", "definition": "Inch = 1/36 yard; yard = 0.9144 metre; so 1 inch = 0.0254 metre exactly", "legal_basis": "Weights and Measures Act 1985, Sch. 1, Pt. VI (units which may not be used for trade except as supplementary indications)", "source_url": "https://www.legislation.gov.uk/ukpga/1985/72/schedule/1", "source_date": "2020-06-13", "retrieved_on": "2026-11-11", "valid_from": "1995-10-01", "valid_until": null }, "ft": { "metres": "0.3048", "symbol": "ft", "definition": "Foot = 1/3 yard; yard = 0.9144 metre; so 1 foot = 0.3048 metre exactly", "legal_basis": "Weights and Measures Act 1985, Sch. 1, Pt. VI (units which may not be used for trade except as supplementary indications)", "source_url": "https://www.legislation.gov.uk/ukpga/1985/72/schedule/1", "source_date": "2020-06-13", "retrieved_on": "2026-11-11", "valid_from": "1995-10-01", "valid_until": null } }, "mass_units": { "kg": { "kilograms": "1", "symbol": "kg", "definition": "Kilogram, the SI unit of mass", "legal_basis": "Décret n° 61-501, art. 2; Weights and Measures Act 1985, Sch. 1, Pt. V", "source_url": "https://www.legifrance.gouv.fr/loda/id/JORFTEXT000000501821", "source_date": "2020-06-13", "retrieved_on": "2026-11-11", "valid_from": "2020-06-13", "valid_until": null }, "lb": { "kilograms": "0.45359237", "symbol": "lb", "definition": "Pound = 0.453 592 37 kilogram", "legal_basis": "Weights and Measures Act 1985, Sch. 1, Pt. VI, definition of \"pound\" inserted by S.I. 1994/2867, reg. 7(3)(c)(ii), from 1 January 2000", "source_url": "https://www.legislation.gov.uk/ukpga/1985/72/schedule/1", "source_date": "2020-06-13", "retrieved_on": "2026-11-11", "valid_from": "2000-01-01", "valid_until": null } }, "volume_units": { "m3": { "cubic_metres": "1", "symbol": "m³", "definition": "Cubic metre = a volume equal to that of a cube each edge of which measures one metre", "legal_basis": "Décret n° 61-501, art. 3; Weights and Measures Act 1985, Sch. 1, Pt. III", "source_url": "https://www.legifrance.gouv.fr/loda/article_lc/LEGIARTI000021160066", "source_date": "2009-10-17", "retrieved_on": "2026-11-11", "valid_from": "2009-10-17", "valid_until": null }, "ft3": { "cubic_metres": "0.028316846592", "symbol": "ft³", "definition": "Cubic foot = 1/27 cubic yard = (0.3048 m)³ = 0.028 316 846 592 m³ exactly", "legal_basis": "Weights and Measures Act 1985, Sch. 1, Pt. VI (cubic foot = 1/27 cubic yard; yard = 0.9144 metre)", "source_url": "https://www.legislation.gov.uk/ukpga/1985/72/schedule/1", "source_date": "2020-06-13", "retrieved_on": "2026-11-11", "valid_from": "1995-10-01", "valid_until": null } }, "countries": { "FR": { "trade_units": { "rule": "The SI is the compulsory system of measurement in France and its units are the only legal units (art. 1). Using other units to measure quantities is prohibited, subject to the needs of international trade outside the European Union and to the derogations of art. 8 and art. 13 (granted by arrêté of the minister for industry where a public interest requires it); values in other units may be added next to the value in the legal unit, in characters no larger than it, and conversion tables remain allowed (art. 8).", "legal_basis": "Décret n° 61-501 du 3 mai 1961, art. 1 (version in force since 1 March 2003, décret n° 2003-165), art. 8 (version in force since 17 October 2009, décret n° 2009-1234) and art. 13", "source_url": "https://www.legifrance.gouv.fr/loda/article_lc/LEGIARTI000021160063", "source_date": "2009-10-17", "retrieved_on": "2026-11-11", "valid_from": "2009-10-17", "valid_until": null } }, "GB": { "trade_units": { "rule": "No person may use for trade a unit of measurement not included in Parts I to V of Schedule 1 (s. 8(1)); the inch, foot, cubic foot and pound are in Part VI, among the units which may not be used for trade except as supplementary indications. A supplementary indication accompanies the metric one, which must be the more prominent, in characters no larger than the metric indication (s. 8(5A)).", "scope": "Section 8 extends to England, Wales and Scotland. Schedule 1, where the units are defined, extends to the whole United Kingdom. Northern Ireland has its own Weights and Measures (Northern Ireland) Order 1981, which this table does not summarise.", "legal_basis": "Weights and Measures Act 1985, s. 8(1) and (5A), and Sch. 1, Pt. VI", "source_url": "https://www.legislation.gov.uk/ukpga/1985/72/section/8", "source_date": "2010-01-01", "retrieved_on": "2026-11-11", "valid_from": "2010-01-01", "valid_until": null, "pending": { "change": "The Product Regulation and Metrology Act 2025 (c. 20), s. 11(3), omits sections 1, 8(1)(a) and 25 and Schedule 1 of the Weights and Measures Act 1985. Section 11(3) comes into force on a day appointed by regulations under s. 15; legislation.gov.uk shows it not in force and the change not yet applied to s. 8 and Schedule 1 (checked 2026-11-11).", "source_url": "https://www.legislation.gov.uk/ukpga/2025/20/section/11", "retrieved_on": "2026-11-11", "in_force": false } } } } }