How much wealth did Britain take from India?

Economist Utsa Patnaik estimates roughly $45 trillion (in current dollars) was drained from India to Britain between 1765 and 1938 — calculated from India's persistent trade surpluses, which were paid not in money but in IOUs that became British capital.

How many people did the Atlantic slave trade kill?

Roughly 12.5 million Africans were deported across the Atlantic between the 16th and 19th centuries. About 1.8 million died during the Middle Passage; millions more died in the raiding and marches that preceded embarkation.

How much value does the Global South still lose every year?

Hickel et al. (Global Environmental Change, 2022) estimate the Global North appropriates about $10 trillion per year from the Global South through unequal exchange — more than enough, every year, to end extreme global poverty many times over.

XIThe Ledger

What the numbers say.

The polite version of empire requires the numbers to stay scattered across footnotes. Here they are, in one place, with sources.

In short

What did colonialism cost, in numbers?

There is no reliable single total for colonial deaths: periods, populations and methods differ. SlaveVoyages estimates about 12.5 million Africans embarked on Atlantic slave voyages and about 1.8 million died during the crossing. Utsa Patnaik’s historical reconstruction values the drain from India to Britain in 1765–1938 at roughly $45 trillion; this depends on the valuation and interest assumptions, not a cash transfer recorded in present-day dollars.

Source — SlaveVoyages; Patnaik (2018); UCL

12.5M

Africans embarked on transatlantic slave voyages

SlaveVoyages

1.8M

Estimated deaths during the Middle Passage

SlaveVoyages

$45T

Patnaik’s estimated drain from India, 1765–1938

Patnaik, 2018

£20M

British compensation fund for slaveholders following the 1833 abolition law

UCL

I. The body count

These figures measure different things. Embarkations are reconstructed from voyage records; deaths at sea are estimated separately. Historical wealth estimates depend on prices and valuation methods. Neither should be added to a single worldwide death toll.

Figure

The Atlantic slave trade by century

Number of Africans embarked on transatlantic slaving voyages.

Source — SlaveVoyages.org, Trans-Atlantic Slave Trade Database

II. The wealth that moved

In 1700, India produced roughly a quarter of world GDP. By the time Britain left, it produced four percent.

Figure

India's share of world GDP, 1700–1950

Percent of global output.

Source — Maddison Project; Bairoch

III. The present tense

The accounting does not stop in 1960. Every chart below describes a country that officially considers racism a closed historical question.

Figure

Median U.S. family wealth, by race

In thousands of 2022 dollars.

Source — Federal Reserve, Survey of Consumer Finances

Counters

Selected historical figures

36,000

Documented Atlantic slaving voyages

£20M

Paid in 1833 by Britain — to slaveholders, not the enslaved. Loan repaid in 2015.

150M FF

Demanded from newly free Haiti in 1825 by France, as the price of recognition

African countries — many borders were negotiated during colonial rule, not all drawn at the Berlin Conference

"If we cannot read the numbers, the apology is theatre."

— Unsilenced, editorial note

Deeper on one number: How many slaves died? — the Middle Passage toll, the deaths before embarkation, and why the estimates differ.

From the Archive

The Sykes–Picot map, 1916. Britain and France drew straight lines across the Arab world.Source — Wikimedia Commons · Public domain · Wikimedia Commons

Colonial Africa, 1913 — Africa in 1913. Twenty-eight years after the Berlin Conference, only Ethiopia and Liberia remained nominally independent.Source — Wikimedia Commons · Public domain · Wikimedia Commons

British Empire map 1886 — Imperial Federation Map of the World, 1886. The pink covers roughly a quarter of the earth's land.Source — Wikimedia Commons · Public domain · Wikimedia Commons

Triangular trade map — The triangular Atlantic trade. Manufactured goods to Africa, enslaved Africans to the Americas, plantation commodities back to Europe.Source — Wikimedia Commons · Public domain · Wikimedia Commons

A Benin Bronze. Thousands were looted by British forces in 1897; most still sit in European museums.Source — Wikimedia Commons · CC-licensed · Wikimedia Commons

Berlin Conference 1885 document — Berlin Conference Final Act, 1885. Fourteen European states partitioned Africa without a single African delegate present.Source — Wikimedia Commons · Public domain · Wikimedia Commons

Last updated 23 June 2026Submit a correction Methodology

References

Sources & Further Reading

[1]Jason Hickel, Christian Dorninger, Hanspeter Wieland & Intan Suwandi, "Imperialist appropriation in the world economy: Drain from the global South through unequal exchange, 1990–2015", Global Environmental Change 73, 102467 (2022).
[2]Utsa Patnaik, "Revisiting the 'Drain', or Transfer from India to Britain", in Agrarian and Other Histories (Tulika, 2018); summarised in Jason Hickel, How Britain stole $45 trillion from India (Al Jazeera, 19 Dec 2018).
[3]Branko Milanović, Global Inequality: A New Approach for the Age of Globalization (Harvard, 2016).
[4]Thomas Piketty, Capital and Ideology (Harvard, 2020), Part III on slave and colonial societies.
[5]Stephen Broadberry & Bishnupriya Gupta, "The Early Modern Great Divergence: Wages, Prices and Economic Development in Europe and Asia, 1500–1800", Economic History Review 59 (2006).
[6]Mike Davis, Late Victorian Holocausts: El Niño Famines and the Making of the Third World (Verso, 2001).
[7]World Bank, World Development Indicators.
[8]UN DESA, World Population Prospects.
[9]Oxfam International, Inequality Kills (annual Davos briefing, 2022 onwards).

All works cited in good faith for documentary, educational and critical use. Errors and omissions: contact the archive.

Cite this page

Unsilenced Editorial. (2026). The Ledger. Unsilenced. https://silencedhistory.org/data

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