Ancient MeasuresANCIENT UNITS OF MEASUREMENT

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Ancient Measures

Convert and calculate ancient units with academically sourced tools built from primary and scholarly evidence. Move from Classical epics to Tudor records and Roman artefacts across length, weight, time, liquid, area, and treasure; every result keeps its historical basis and limits visible.

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Geometric Great Pyramid emblem A gold line pyramid inside circular measurement rings. 280 RC 440 RC 5½ SEKED
189Units of Measurement
7,820Possible Conversions
5000years of history

Latest from the build log

Case study

The seked

Pyramid slope · Egypt

See how an Egyptian run-to-rise system turns masonry geometry into a practical measure.

 Unit of the day

Maya baktun

Time · Mesoamerica · 1.244e+10 s

A matrix-backed working definition with its historical limits attached.
Article spotlight

Stonehenge and the megalithic yard

A carefully planned monument, a disputed prehistoric ruler, and a calculation you can test. What does Stonehenge actually reveal about the megalithic yard?

Article programme

Every page, rebuilt from the evidence.

The site is rewriting its temple, unit and study pages one at a time. Each rebuilt page works from surveys and scholarly sources, and states its measurements with their limits.

Published
19
Article words
26,373
In the plan
230

Stonehenge

Visual upgrades: 0 / 191 units. The full plan also covers evidence, converters, site quality, measurement and reader discovery across 9 phases. See the whole project →

Explore full project progress & analysis →

PROGRAMME · Nº 019 NOV 2026
19 of 230 commissioned pages publishedA pyramid of 230 stones, one for each page in the article plan, laid from the base in plan order. Gold stones are published; open stones await work or evidence; the dashed stone is next.The Stadium at Olympia: publishedRed Pyramid: publishedAngkor Wat: publishedGreat Pyramid of Khufu: publishedPyramid of Khafre: publishedPyramid of Menkaure: publishedStep Pyramid of Djoser: publishedPyramid of Meidum: publishedBent Pyramid: publishedSeked: Egyptian Slope and Ratios: publishedThe Roman Dodecahedron: publishedFalse Precision in Ancient Units: publishedHow to Read Sacred Geometry Responsibly: publishedWhat Is Ancient Metrology?: publishedGreat Pyramid ratios from one 440-by-280-cubit model: publishedThere Was No Single Greek Foot: publishedAlexandria to Syene: What the Geometry Can Prove: publishedPetrie’s Giza survey: dimensions, errors and cubit estimates: publishedPyramid of Unas: nextAncient Measures for Historical Fiction: queuedEgyptian royal cubit (Giza): queuedKarnak Temple Complex: queuedThe Parthenon and Acropolis: queuedTemple of Aphaia: queuedPergamon: queuedThe Pantheon: queuedZiggurat of Ur: queuedStonehenge: publishedErechtheion: queuedHephaisteion: queuedEanna precinct, Uruk: queuedLuxor Temple: queuedDeir el-Bahari: queuedSphinx and Khafre valley temple: queuedAbusir pyramid group: queuedAbu Simbel: queuedTemple of Zeus at Olympia: queuedTemple of Poseidon at Sounion: queuedEtemenanki, Babylon: queuedAvebury: queuedEgyptian digit: queuedEgyptian palm: queuedEgyptian hand: queuedEgyptian fist: queuedEgyptian double handbreadth: queuedEgyptian small span: queuedEgyptian great span: queuedEgyptian foot: queuedEgyptian remen: queuedEgyptian short cubit: queuedEgyptian royal cubit (New Kingdom rod): queuedEgyptian pole: queuedEgyptian reed: queuedEgyptian khet: queuedEgyptian iteru: queuedEgyptian palms and digits: queuedAttic pous: queuedOlympic pous: queuedPhiletaeric pous: queuedAeginetan pous: queuedAttic stadion: queuedOlympic stadion: queuedAeginetan stadion: queuedRoman digit: queuedRoman uncia: queuedRoman palmus: queuedRoman pes: queuedRoman cubitus: queuedRoman passus: queuedRoman mile: queuedMesopotamian digit: queuedNippur cubit: queuedMesopotamian nindan: queuedKhmer hat (Angkor Wat reconstruction): queuedMegalithic yard (Thom hypothesis): queuedinch: queuedmillimetre: queuedcentimetre: queuedinternational foot: queuedmetre: queuedyard: queuedmile: queuedsquare Attic pous: queuedEgyptian sa (Old Kingdom): queuedsquare Roman pes: queuedAttic plethron (land square): queuedEgyptian heseb (Old Kingdom): queuedRoman scripulum: queuedEgyptian remen area (Old Kingdom): queuedRoman actus quadratus: queuedEgyptian land-unit (ta): queuedRoman iugerum: queuedEgyptian thousand (kha): queuedEgyptian sa (Middle and New Kingdom): queuedEgyptian heseb (Middle and New Kingdom): queuedEgyptian remen area (Middle and New Kingdom): queuedEgyptian setjat (aroura): queuedEgyptian kha (Middle and New Kingdom): queuedsquare foot: queuedsquare metre: queuedacre: queuedhectare: queuedsquare kilometre: queuedAeginetan drachma (mass): queuedAttic obol: queuedEgyptian shematy (Old and Middle Kingdom): queuedMauryan ratti: queuedMesopotamian grain: queuedAchaemenid shekel standard: queuedQin-Han liang: queuedRoman scrupulum (mass): queuedAeginetan mina: queuedAttic drachma (mass): queuedEgyptian shematy (New Kingdom): queuedMauryan masha: queuedMesopotamian shekel: queuedAchaemenid karsha: queuedQin-Han jin: queuedRoman drachma (mass): queuedAeginetan talent: queuedAttic mina: queuedEgyptian qedet (New Kingdom): queuedMauryan purana or dharana: queuedMesopotamian mina: queuedAchaemenid-Babylonian talent: queuedRoman uncia (mass): queuedAttic talent: queuedEgyptian deben (Old and Middle Kingdom): queuedMauryan karsha: queuedMesopotamian talent: queuedRoman libra: queuedEgyptian deben (New Kingdom): queuedavoirdupois grain: queuedmilligram: queuedTower pound (medieval English representative): queuedtroy grain: queuedavoirdupois ounce: queuedmetric carat (mass): queuedpennyweight: queuedavoirdupois pound: queuedgram: queuedtroy ounce: queuedkilogram: queuedtroy pound: queuedmetric tonne: queuedAttic kotyle: queuedEgyptian ro: queuedRoman cyathus: queuedAttic chous: queuedEgyptian dja: queuedRoman quartarius: queuedAttic metretes: queuedEgyptian hin: queuedRoman hemina: queuedEgyptian heqat: queuedRoman sextarius: queuedEgyptian double heqat: queuedRoman congius: queuedEgyptian oipe: queuedRoman urna: queuedEgyptian khar (New Kingdom): queuedRoman amphora (quadrantal): queuedEgyptian khar (Middle Kingdom): queuedRoman culleus: queuedEgyptian cubic cubit: queuedEgyptian khar: queuedBritish beer pin (4.5 imperial gallons): queuedEnglish wine rundlet (18 wine gallons): queuedBritish beer firkin (9 imperial gallons): queuedEnglish wine barrel (31.5 wine gallons): queuedBritish beer kilderkin (18 imperial gallons): queuedEnglish wine tierce (42 wine gallons): queuedBritish beer barrel (36 imperial gallons): queuedEnglish wine hogshead (63 wine gallons): queuedBritish beer hogshead (54 imperial gallons): queuedEnglish wine puncheon (84 wine gallons): queuedEnglish wine butt or pipe (126 wine gallons): queuedEnglish wine tun (252 wine gallons): queuedAustralian spirit measure (15 mL): queuedAustralian standard wine glass (100 mL): queuedimperial pint: queuedmillilitre: queuedUK spirit measure (25 mL): queuedUS beer barrel (31 US gallons): queuedUS liquid pint: queuedstandard wine bottle (750 mL): queuedAustralian spirit nip (30 mL): queuedAustralian restaurant wine glass (150 mL): queuedimperial gallon: queuedlitre: queuedUK spirit measure (35 mL): queuedUS liquid gallon: queuedAustralian pot or middy (285 mL): queuedAustralian spirit measure (60 mL): queuedcubic metre: queuedUK fortified-wine measure (50 mL): queuedAustralian stubby or can (375 mL): queuedUK fortified-wine measure (70 mL): queuedAustralian schooner (425 mL): queuedUK still-wine glass (125 mL): queuedUK still-wine glass (175 mL): queuedUK draught beer, one-third pint: queuedUK draught beer, half pint: queuedUK draught beer, two-thirds pint: queuedEgyptian civil day: queuedGreek equinoctial hour: queuedIndian vipala: queuedMaya k'in: queuedMesopotamian geš: queuedminute: queuedRoman equinoctial hour: queuedRoman nundinal cycle: queuedsecond: queuedEgyptian ten-day period: queuedhour: queuedIndian vinadi or pala: queuedMaya uinal: queuedMesopotamian watch: queuedday: queuedEgyptian civil month: queuedIndian ghati: queuedMaya tun: queuedMesopotamian schematic month: queuedEgyptian civil season: queuedIndian muhurta: queuedMaya katun: queuedMesopotamian schematic year: queuedweek: queuedEgyptian civil year: queuedMaya baktun: queued230 PAGES · ONE STONE EACHPUBLISHED19 PAGESNEXTPYRAMID OF UNASAPEXLAST PAGE IN PLAN
  • Published
  • Next
  • Queued

The article programme

19 PUBLISHED · 211 PENDING · 230 PAGES

Article words 26,373Newest Stonehenge
Laid in Plan orderNext Pyramid of Unas
PublishedSource · article queue · 9 NOV 2026
One stone for each of the 230 pages in the article plan, laid from the base in the order the plan will publish them, so the lower courses hold the pages the plan reaches first.

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Study library areas

Explore a topic, study a site, or investigate a unit of measurement.

01 · Topics

Case Studies

Explore ratios, geometry and measurement through complete topics and worked investigations.

02 · Places

Temples

Study the proportions, ancient measures and historical setting of a site.

03 · Measures

Units

Explore measurement standards, their values and their historical use.