The world's birth clock
Roughly 4.3 babies are born every second, worldwide — about 363,000 a day, or 132 million a year, according to UN World Population Prospects estimates. Unlike eating or sleeping, this isn't a share of the population in a given state at any instant; it's a steady, ongoing rate, which is why the number above counts up rather than showing a percentage.
~4.3/sec
babies born worldwide, every second
~132M
total births per year, per UN estimates
2.1
the replacement-level fertility rate needed to hold a population steady
How we estimate this
The counter above multiplies the UN's estimated global crude birth rate by elapsed seconds since UTC midnight — a straightforward rate model, not a live registry count (no organization actually counts births in real time). The relative-rate map applies a mild, real but modest daytime bias in birth timing, reflecting the growing share of scheduled inductions and caesarean deliveries in many countries, layered on top of population by time zone.
Where most babies are born
Births are heavily concentrated in a small number of large, young-population countries. India leads with an estimated 25.6 million births a year, followed by China (13.4 million), Nigeria (7.2 million), Pakistan (6.1 million), and Indonesia (5.0 million) — together, these five countries account for nearly 40% of all births on Earth.
The fertility divide
The gap between countries' fertility rates is enormous. Niger sits near the top of the global range at roughly 6.6 children per woman, driven by a young population and limited access to family planning. At the other extreme, South Korea's fertility rate has fallen to around 0.7–0.8 — among the lowest ever recorded anywhere — despite the government spending over $200 billion since the 1990s on parental leave, childcare subsidies, and other pro-natalist policies. Replacement-level fertility, the rate needed to hold a population steady without migration, sits at roughly 2.1 children per woman; the current global average is only just above that line and falling.
Births versus deaths — the balance of population growth
Globally, about 4.3 births occur for every 2 deaths each second, which is why world population continues to grow, even as the rate of growth slows. That balance has already flipped in some countries: Our World in Data notes that in Japan, there are now approximately two deaths for every birth — a preview of the demographic pattern a growing number of aging, low-fertility countries are expected to follow this century.
Frequently asked questions
How many babies are born every day?
About 363,000 worldwide, roughly 4.3 every second, based on UN World Population Prospects estimates of about 132 million births a year.
Which country has the most births?
India, with an estimated 25.6 million births a year — followed by China, Nigeria, Pakistan, and Indonesia. Together these five account for nearly 40% of all global births.
Which country has the highest and lowest fertility rate?
Niger has one of the highest, around 6.6 children per woman. South Korea has one of the lowest, around 0.7–0.8 — far below the replacement level of about 2.1.
Are more people being born than dying?
Globally, yes — roughly 4.3 births for every 2 deaths each second. But this has already reversed in some countries, including Japan, where deaths now outnumber births.
Sources
- UN Department of Economic and Social Affairs, World Population Prospects 2024
- Our World in Data, Births and Deaths Per Year
- World Bank, Crude Birth Rate by Country