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- UK Public General Acts
- 1985 c. 72
- SCHEDULE 1

- Latest available (Revised)
- Original (As enacted)

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Sections 1(2), 8(1).

*Imperial units*

Textual Amendments

F1Sch. 1 Pts. I, II: entries omitted (1.10.1995) by virtue of S.I. 1994/2867, **reg. 6(5)(a)**

Kilometre = | 1000 metres. |

METRE | [F2for which the symbol “m” is used, is the SI unit of length, defined by taking the fixed numerical value of the speed of light in vacuum c to be 299 792 458 when expressed in the unit m/s, where the second is defined by taking the fixed numerical value of the caesium frequency Δv_{Cs}, the unperturbed ground-state hyperfine transition frequency of the caesium 133 atom, to be 9 192 631 770 when expressed in the unit Hz, which is equal to s^{-1}.] |

Decimetre = | 1/10 metre. |

Centimetre = | 1/100 metre. |

Millimetre = | 1/1000 metre. |

Textual Amendments

F2Words in Sch. 1 Pt. 1 substituted (13.6.2020) by The Weights and Measures Act 1985 (Definitions of Metre and Kilogram) (Amendment) Order 2020 (S.I. 2020/586), arts. 1(b), **2(2)**

Textual Amendments

F3Sch. 1 Pts. I, II: entries omitted (1.10.1995) by virtue of S.I. 1994/2867, **reg. 6(5)(a)**

Hectare = | 100 ares. |

Decare = | 10 ares. |

Are = | 100 square metres. |

SQUARE METRE= | a superficial area equal to that of a square each side of which measures one metre. |

Square decimetre = | 1/100 square metre. |

Square centimetre = | 1/100 square decimetre. |

Square millimetre = | 1/100 square centimetre. |

CUBIC METRE = | a volume equal to that of a cube each edge of which measures one metre. |

Cubic decimetre = | 1/1000 cubic metre. |

Cubic centimetre = | 1/1000 cubic decimetre. |

Hectolitre = | 100 litres. |

LITRE = | a cubic decimetre. |

Decilitre = | 1/10 litre. |

Centilitre = | 1/100 litre. |

Millilitre = | 1/1000 litre. |

Textual Amendments

F4Heading in Sch. 1 Pt. IV substituted (1.1.2000) by S.I. 1994/2867, **reg. 7(3)(a)(i)**

Textual Amendments

F5Sch. 1 Pt. IV: definitions of “gallon”, “quart” and “gill” omitted (1.10.1995) by virtue of S.I. 1994/2867, **reg. 6(5)(b)(i)**

F6Sch. 1 Pt. IV: definition substituted (1.10.1995) by S.I. 1994/2867, **reg. 6(5)(b)(ii)**

F7Sch. 1 Pt. IV: definition of “fluid ounce” omitted (1.1.2000) by virtue of S.I. 1994/2867, **reg. 7(3)(a)(ii)**

Hectolitre = | 100 litres. |

LITRE = | a cubic decimetre. |

Decilitre = | 1/10 litre. |

Centilitre = | 1/100 litre. |

Millilitre = | 1/1000 litre. |

Textual Amendments

F8Heading in Sch. 1 Pt. V substituted (1.1.2000) by S.I. 1994/2867, **reg. 7(3)(b)(i)**

Textual Amendments

F9Sch. 1 Pt. V: definitions of “pound” and “ounce” omitted (1.1.2000) by virtue of S.I. 1994/2867, **reg. 7(3)(b)(ii)**

F10Sch. 1 Pt. V: definition of “ounce troy” substituted (1.1.2000) by S.I. 1994/2867, **reg. 7(3)(b)(iii)**

Tonne, metric tonne = | 1000 kilograms. |

KILOGRAM | [F11for which the symbol “kg” is used, is the SI unit of mass, defined by taking the fixed numerical value of the Planck constant h to be 6.626 070 15 x 10^{-34} when expressed in the unit J s, which is equal to kg m^{2} s^{-1}, where the second is defined by taking the fixed numerical value of the caesium frequency Δv_{Cs}, the unperturbed ground-state hyperfine transition frequency of the caesium 133 atom, to be 9 192 631 770 when expressed in the unit Hz, which is equal to s^{-1}.] |

Hectogram = | 1/10 kilogram. |

Gram = | 1/1000 kilogram. |

Carat (metric) = | 1/5 gram. |

Milligram = | 1/1000 gram. |

Textual Amendments

F11Words in Sch. 1 Pt. 5 substituted (13.6.2020) by The Weights and Measures Act 1985 (Definitions of Metre and Kilogram) (Amendment) Order 2020 (S.I. 2020/586), arts. 1(b), **2(3)**

Textual Amendments

F12Sch. 1 Pt. VI substituted (1.10.1995) by S.I. 1994/2867, **reg. 6(5)(c)**

Measurement of length | |||
---|---|---|---|

Mile | = | 1760 yards. | |

Furlong | = | 220 yards. | |

Chain | = | 22 yards. | |

YARD | = | 0.9144 metre. | |

Foot | = | 1/3 yard. | |

Inch | = | 1/36 yard. | |

Measurement of area | |||

Square mile | = | 640 acres. | |

Acre | = | 4840 square yards. | |

Rood | = | 1210 square yards. | |

Square yard | = | a superficial area equal to that of a square each side of which measures one yard. | |

Square foot | = | 1/9 square yard. | |

Square inch | = | 1/144 square foot. | |

Measurement of volume | |||

Cubic yard | = | a volume equal to that of a cube each edge of which measures one yard. | |

Cubic foot | = | 1/27 cubic yard. | |

Cubic inch | = | 1/1728 cubic foot. | |

Measurement of capacity | |||

Bushel | = | 8 gallons. | |

Peck | = | 2 gallons | |

GALLON | = | 4.54609 cubic decimetres. | |

Quart | = | ¼ gallon. | |

Gill | = | ¼ pint. | |

[F13Fluid ounce] | [F13=] | [F131/20 pint.] | |

Fluid drachm | = | 1/8 fluid ounce. | |

Minim | = | 1/60 fluid drachm. | |

Measurement of mass or weight | |||

Ton | = | 2240 pounds. | |

Hundredweight | = | 112 pounds. | |

Cental | = | 100 pounds. | |

Quarter | = | 28 pounds. | |

Stone | = | 14 pounds. | |

[F14POUND] | [F14=] | [F140.453 592 37 kilogram.] | |

[F15 Ounce] | [F15=] | [F151/16 pound] | |

Dram | = | 1/16 ounce. | |

Grain | = | 1/7000 pound. | |

Pennyweight | = | 24 grains. | |

Ounce apothecaries | = | 480 grains. | |

Drachm | = | 1/8 ounce apothecaries. | |

Scruple | = | 1/3 drachm. | |

Metric ton | = | 1000 kilograms. | |

Quintal | = | 100 kilograms.] |

Textual Amendments

F13Sch. 1 Pt. VI: definition of “fluid ounce” inserted (1.1.2000) by S.I. 1994/2867, **reg. 7(3)(c)(i)**

F14Sch. 1 Pt. VI: definition of “pound” inserted (1.1.2000) by S.I. 1994/2867, **reg. 7(3)(c)(ii)**

F15Sch. 1 Pt. VI: definition of “ounce” inserted (1.1.2000) by S.I. 1994/2867, **reg. 7(3)(c)(ii)**

1. | (a) AMPERE | [F16for which the symbol “A” is used, is the SI unit of electric current, defined by taking the fixed numerical value of the elementary charge e to be 1.602 176 634 × 10^{-19} when expressed in the unit C, which is equal to A s, where the second is defined by taking the fixed numerical value of the caesium frequency Δv_{Cs}, the unperturbed ground-state hyperfine transition frequency of the caesium 133 atom, to be 9 192 631 770 when expressed in the unit Hz, which is equal to s^{-1}.] |

(b) OHM | is the electric resistance between two points of a conductor when a constant potential difference of 1 volt, applied between the two points, produces in the conductor a current of 1 ampere, the conductor not being the seat of any electromotive force. | |

(c) VOLT | is the difference of electric potential between two points of a conducting wire carrying a constant current of 1 ampere when the power dissipated between these points is equal to 1 watt. | |

(d) WATT | is the power which in one second gives rise to energy of 1 joule [F17, where the second has the meaning given in the definition of “AMPERE”]. | |

2. | Kilowatt | = 1000 watts. |

Megawatt | = one million watts. |

Textual Amendments

F16Words in Sch. 1 Pt. 7 substituted (13.6.2020) by The Weights and Measures Act 1985 (Amendment) and Units of Measurement Regulations 1986 (Amendment) Regulations 2019 (S.I. 2019/1211), regs. 1(b), **2(a)**

F17Words in Sch. 1 Pt. 7 inserted (13.6.2020) by The Weights and Measures Act 1985 (Amendment) and Units of Measurement Regulations 1986 (Amendment) Regulations 2019 (S.I. 2019/1211), regs. 1(b), **2(b)**

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