Farming is the single largest way humans use the planet’s surface.
But the way that land is split between feeding people directly and feeding animals is startlingly lopsided.
TL;DR
- Half of the world’s habitable land is used for agriculture
- Livestock takes up 77% of that farmland but supplies only 18% of the world’s calories and 37% of its protein.
- The remaining habitable land is mostly forest (39%), with shrub, urban, and freshwater making up the rest.
The land-use figures here come from Our World in Data’s synthesis of FAO statistics and the Poore and Nemecek global food dataset.
How the Planet’s Land is Divided
Within that agricultural half, the split is what surprises people.
Three-quarters of farmland is used for livestock, counting both grazing pasture and cropland grown for animal feed, yet it delivers just 18% of global calories.
The other quarter, growing crops people eat directly, provides the majority of the world’s food energy.
ALSO READ: Share of Income Spent on Food Around the World
There’s an Efficiency Gap
Put plainly: the land used for livestock is as large as the entire Americas, while croplands for direct human food are about the size of China.
The animal share of land is vast; the animal share of calories is small.
This matters most in high-consumption countries.
In the United States, meat and dairy are central to the average diet, which means American consumption pulls hard on that livestock land footprint, both domestically and through imported feed.
Because livestock uses nearly 80% of agricultural land yet supplies under 20% of calories, what people eat drives land use far more than how much they eat.
A shift of even a few percentage points toward plant-based calories in wealthy diets frees up disproportionately large amounts of land.
ALSO READ: Is Farming Really a Shrinking Part of the World?
Why this Shapes Everything Downstream
Land use is the hinge for climate, biodiversity, and deforestation debates in agriculture.
Agriculture is listed as a threat to a large majority of the species assessed as at risk of extinction, and the livestock share is the biggest single lever.
Understanding the 77-percent-of-land, 18-percent-of-calories split is the starting point for almost every serious conversation about the environmental cost of food.
ELI5
Half the land people can live on is used for farming.
Most of that farmland is used to raise animals, even though animals give us only a small slice of our food energy.
Growing plants we eat directly uses far less land for far more food.
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