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)