Borders of Time

How long did Vasco da Gama take to sail from Africa to India?

26 days

He left Malindi on 24 April 1498 and anchored off Calicut on 20 May.

For the same journey in 1498, our Journey Planner estimates 37 days. See its route below.

Source: Vasco da Gama, Wikipedia; journal of the voyage, Fordham

Journey Planner

The same trip, later

Malindi to Calicut by the quickest means of each age.

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1498

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1498
1 CE2025
Travelling

Real journeys

How close do we get?

Documented journeys, with how long they really took and what the planner estimates. Pick one to see its route.

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More documented journeys

How we estimate

A traveller’s pace, from the historians

We divide the world into squares about 28 km across and note how much of each is land, how high and how rugged it is, whether it is desert, and whether a railway runs through it. Then we find the quickest way through them for a traveller of the year you choose: on foot, on horseback, or by the fastest means of the time, by land, sea or, from 1945, air. The speeds come from studies of how fast people really moved, listed below.

TravellingWe useBased on
On foot30 km a day on easy groundORBIS uses 30 km a day for walkers; Scheidel suggests 20 over many weeks. Tested against documented journeys, 30 fits best.1, 2
On horseback45 km a dayORBIS uses 56 km a day for routine riding; most 14th-century French journeys ran at 20 to 30 miles a day.1, 3
Hills, mountains and desertsSlower the more rugged the land; caravan pace in desertRoyal itineraries show rugged country slowed travellers. Camel caravans kept about 30 km a day; sand seas such as the Taklamakan are skirted, not crossed.3, 1, 4
Sailing ships120 km a day, 130 after 1450, 150 after 1780Ancient ships averaged 4 to 6 knots with a fair wind and under 2½ against it. Ocean ships of 1750 managed about 4.5 knots under way. We use a little less, as ships followed the winds.5, 1, 6
Where ships sailedOnly seas in regular use that yearThe Mediterranean, Red Sea and monsoon crossing to India from the 1st century; the Bay of Bengal and China Seas from Faxian’s time; Viking seas from 793; Japan–China from 630; the Atlantic from 1492; Portuguese routes to India from 1498; the Manila galleons from 1565; every unfrozen sea from about 1600. No ship travel in the Americas before 1492.7, 8, 9, 10, 12, 11, 13, 14
Boarding a shipA day under sail, a few hours by steamerOur own allowance for finding a ship and loading. No source gives a figure; one day fits documented voyages best.
Coaches (Britain)45 km a day from 1650, 60 by 1750, 280 for mail coaches from 1784Coaching timetables of the 17th and 18th centuries; mail coaches ran day and night.15
Steamers, from 183812 to 26 km an hour; Atlantic liners from 15 days in 1838 to about 5 by the 1930sAverage Liverpool–New York voyage times by year, and liner speeds.16, 17
CanalsSuez from 1869, Kiel from 1895, Panama from 1914Opening dates from the canal authorities.18, 19, 20
Trains, from 1830Express 40 to 130 km an hour on the main networks, 25 to 60 elsewhereTrains run where railways run today, from the year each region’s main lines were open: Britain and Belgium by 1850, the US to the Pacific in 1869, Canada 1885, the Trans-Siberian 1904. Where no year is known, our rule is the first railway plus 25 years.23, 21, 22, 26, 25, 24
Flights, from 1945Propliners about 420 km an hour with stops and overnight rests; jets about 880 from 1958By 1957 airliners had replaced ocean liners across the Atlantic. Earlier flying was rare and is left out.27, 28, 29
Roads, from 1950500 km a day where there is no trainOur own allowance for car and bus travel. No source gives a figure.

We tested the planner against 101 documented journeys, from Roman voyages to jet flights. For steamers and trains it usually came within about a fifth of the real time; for walkers, riders and sailing ships, within about half, because real journeys varied so much with the weather, the season and the traveller. That is why each answer comes with a likely range.

The estimate is for steady travel in fair conditions. It leaves out river boats, the state of the roads, storms and becalmed ships, and the wars, tolls and border waits that held real travellers up, and for modern journeys how often trains, ships and flights ran. Borders on the map are those of the nearest earlier map year.

Sources

  1. Scheidel, Meeks and Weiland, ORBIS: The Stanford Geospatial Network Model of the Roman World, v1.0 (2012)
  2. Walter Scheidel, “The shape of the Roman world”, Princeton/Stanford Working Papers in Classics (2013)
  3. J. R. Hall, “Travel Speed over the Longue Durée”, European Review of Economic History (2026)
  4. John E. Hill, The Peoples of the West from the Weilue, appendices, citing Bulliet, The Camel and the Wheel (1975)
  5. Lionel Casson, “Speed under Sail of Ancient Ships”, Transactions of the American Philological Association 82 (1951)
  6. Morgan Kelly and Cormac Ó Gráda, “Speed under Sail, 1750–1830”, UCD Centre for Economic Research working paper (2014)
  7. The Periplus of the Erythraean Sea (1st century CE), Fordham Ancient History Sourcebook
  8. Faxian, A Record of Buddhistic Kingdoms (c. 414), trans. James Legge, Project Gutenberg
  9. Viking Age, Wikipedia
  10. Japanese missions to Tang China, Wikipedia
  11. Portuguese discoveries, Wikipedia
  12. Voyages of Christopher Columbus, Wikipedia
  13. Manila galleon, Wikipedia
  14. Dutch Asiatic Shipping, 1595–1795, Huygens Institute
  15. Charles G. Harper, Stage-coach and Mail in Days of Yore (1903), Project Gutenberg
  16. Timothy Hatton, “Time on the Crossing: Emigrant Voyages across the Atlantic, 1853 to 1913”, IZA Discussion Paper 16274 (2023)
  17. Steam power at sea, Royal Museums Greenwich
  18. Suez Canal history, Suez Canal Authority
  19. History of the Kiel Canal, Kiel Canal
  20. History of the Panama Canal, Panama Canal Authority
  21. Statistical Year-Book of Canada 1902, pp. 384–385: first railways of the world, Statistics Canada
  22. Jordi Martí-Henneberg, “From State-Building to European Integration: The Role of the Railway Network in the Territorial Integration of Europe, 1850–2020”, Social Science History (2021)
  23. Timothy Leunig, “Time is Money: A Re-assessment of the Passenger Social Savings from Victorian British Railways”, LSE Economic History working paper 09/05 (2005)
  24. The Trans-Siberian Railway, Planet Wissen (WDR, in German)
  25. The Last Spike, Canadian Museum of History
  26. The Golden Spike, Utah Department of Cultural & Community Engagement
  27. Commercial aviation at mid-century, Smithsonian National Air and Space Museum
  28. The opening of the jet era, U.S. Centennial of Flight Commission
  29. Powered transatlantic passenger modes, The Geography of Transport Systems

Map data: land outlines and deserts from Natural Earth; elevation from the Terrain Tiles open dataset (Mapzen, from SRTM, GMTED2010, ETOPO1 and other sources); historical borders from historical-basemaps.