Technology · Science · Business · 1736–1819

James Watt — Age & Birthday

Born: 19 January 1736 · Died: 19 August 1819 · Age at death: 83

How old was James Watt when he died?

James Watt died aged 83. He was born on 19 January 1736 and died on 19 August 1819.

Scottish engineer whose improvements to the steam engine powered the Industrial Revolution; the unit of power is named after him

Did you know?He developed the concept of horsepower as a way to compare the output of steam engines with the power of horses.

Editor's Take:

Watt was not the inventor of the steam engine, but he made it efficient enough to change the world. Repairing a model of an older engine, he realised it wasted huge amounts of heat. His idea of a separate condenser cut fuel use dramatically, making steam power practical for mines, mills and factories. In partnership with Matthew Boulton, he sold engines across Britain and helped drive the Industrial Revolution. The watt, the unit of power used on every light bulb, is named after him.

Key Milestones

  1. 1757: Instrument maker at the University of Glasgow
  2. 1765: Separate condenser – his key idea
  3. 1769: First patent for his steam engine improvement
  4. 1775: Partnership with Matthew Boulton

James Watt (30 January 1736 (19 January 1736 OS) – 25 August 1819) was a Scottish inventor, engineer and chemist who improved on Thomas Newcomen's 1712 Newcomen steam engine with his Watt steam engine in 1776, which was fundamental to the changes brought by the Industrial Revolution in both his native Great Britain…

Text from Wikipedia, licensed under CC BY-SA 4.0

Profile

James Watt: The Engineer Who Powered the Industrial Revolution

Scottish inventor and engineer, born in Greenock on 19 January 1736

James Watt was born in Greenock, Scotland, on 19 January 1736. He trained as an instrument maker in London and returned to work at the University of Glasgow.

In 1765 he hit on the idea of the separate condenser, greatly improving the Newcomen steam engine. He partnered with the Birmingham manufacturer Matthew Boulton in 1775.

Their firm produced engines that powered factories and mines. Watt also invented a copying press and the sun and planet gear, and he died in 1819 near Birmingham.

Career highlights

  1. 1736Born in Greenock, Scotland
  2. 1757Instrument maker: at the University of Glasgow
  3. 1765Separate condenser: his key idea
  4. 1769First patent: for his steam engine improvement
  5. 1775Partnership with Matthew Boulton
  6. 1781Rotary motion: engines can drive machinery
  7. 1788Centrifugal governor: controls engine speed
  8. 1819Dies near Birmingham
  9. 1882The watt: unit of power named after him

Did you know?He and Matthew Boulton appear together on the Bank of England £50 note issued in 2011.

Age at death
83
Years since death
207

Questions people ask

Frequently asked questions

When is James Watt's birthday?
James Watt's birthday is January 19. He was born on January 19, 1736 in Greenock, United Kingdom.
How old was James Watt when he died?
James Watt died on August 19, 1819, aged 83.
Who shares a birthday with James Watt?
Famous people who share James Watt's January 19 birthday include Edgar Allan Poe, Paul Cézanne, Auguste Comte, Dolly Parton and Robert E. Lee.

Born on the same day6

January 19 →
Edgar Allan Poe1809–1849

Edgar Allan Poe

LiteratureDied aged 40
View profile Photo (modified): Unknown author Unknown author ; Restored by Yann Forget and Adam Cuerden · Public domain
Paul Cézanne1839–1906

Paul Cézanne

ArtDied aged 67
View profile Photo (modified): Unknown; Cézanne was born in 1839 and died in 1906 · Public domain
Auguste Comte1798–1857

Auguste Comte

PhilosophyDied aged 59
View profile Photo (modified): Jean-Pierre Dalbéra from Paris, France · CC BY 2.0
Dolly Parton1946–2026

Dolly Parton

MusicWould be 80
View profile Photo (modified): David Gahr · Public domain
Robert E. Lee1807–1870

Robert E. Lee

MilitaryDied aged 63
View profile Photo (modified): Julian Vannerson · Public domain
Janis Joplin1943–1970

Janis Joplin

MusicWould be 83
View profile Photo (modified): Grossman Glotzer Management Corporation · Public domain

Missing someone? Suggest them

Also Capricorn4

All →

Birthday gift ideas

We may earn a small commission from purchases, at no extra cost to you.

Reviewed by the Who Shares My Birthday editorial team.

Last reviewed: October 2026