Trillion

1.

One thousand billion (1,000,000,000,000 or 10¹²), for example EUR 123 trillion = EUR 123,000,000,000,000. Sometimes abbreviated to 'trn' or 'tn'.

2.

Historically in the UK and some other countries, 'trillion' used to refer mathematically to 1,000,000,000,000,000,000 (or 10¹⁸).

This historical usage never became established in finance, and is now defunct for practical finance purposes.

See also

• Billion
• Quadrillion
• Terabyte