A1 paper
A1 paper is an ISO 216 paper format produced by halving an A0 sheet across its longer side.
How big is it?
84.1 cm long
Also 2.759 ft
Length · standard

A little perspective
About the same scale as Luna 2.
Luna 2: Luna 2 was a Soviet spacecraft that became the first human-made object to impact the Moon in 1959.
Measurements, assumptions & sources +
A1 paper
594 × 841 mm. Area is derived from trimmed sides.
University of Cambridge — ISO paper sizes
The marked length is calibrated. Unmeasured illustration details are representative.
Luna 2
Luna 2 used an approximately 0.9 m spherical spacecraft bus and had a mass of about 390.2 kg. Antennas and scientific booms extend beyond the calibrated body diameter.
The marked spherical bus diameter is calibrated. Unmeasured illustration details are representative.
Change your perspective
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Why this measurement?
Why we use 84.1 cm
For comparison, this page uses length. The record labels this value standard, so the stated convention rather than an inferred average controls the comparison.
594 × 841 mm. Area is derived from trimmed sides.
The marked vertical span follows the named feature; transparent margins and unmeasured details do not alter it. How calibrated comparisons work →
Recorded properties
A1 paper dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 84.1 cm | Not recorded | standard | |
| 4,996 cm² | Not recorded | standard | |
| 59.4 cm | Not recorded | standard | |
| 84.1 cm | Not recorded | standard |
Around this scale
Go smaller. Go bigger.
These links use compatible length records, ordered around the selected value.
Nearest lower value · Living thingsDog80 cmA dog is a domesticated mammal with breeds that vary greatly in body shape and size.
Around the same scale · Everyday thingsSquare shower tray90 cmA square shower tray is a flat, waterproof base installed in a shower to collect and drain water.
Nearest higher value · Everyday thingsWashing machine85 cmA washing machine is a household appliance that automatically washes clothes using water and detergent.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- University of Cambridge — ISO paper sizesNominal trimmed A-series dimensions. Area computed from millimetre-rounded sides.
There’s always another scale






