1:1

1:1 may refer to:

• 1:1 aspect ratio (image), the square format
• 1:1 pixel mapping, a video display technique
• 1:1, a film by Richard Reeves (2001)
• Koenigsegg One:1, a model of the Koenigsegg Agera sports car

Mathematics

• 1:1 Scale (ratio)
• 1:1 line in a 2-dimensional Cartesian coordinates is an identity line

Religion

• Genesis 1:1
• John 1:1
• Matthew 1:1

See also

• 1-1 (disambiguation)
• 1+1 (disambiguation)
• One-to-one (disambiguation)