ORDERS OF MAGNITUDE (AREA)

{| class="wikitable"
|+'List of orders of magnitude for area'
!Factor (m²)
!Multiple
!Value
!Item
|-
|10^-70
| 
|2.61×10^-70 m²
|the Planck area,
|-
|colspan="4"|...
|-
|10^-30
|1 square femtometre (fm²)
| 
| 
|-
|10^-28
| 
|10^-28 m²
|1 barn, roughly the cross-sectional area of an uranium nucleus
|-
|10^-24
|1 square picometre (pm²)
| 
| 
|-
|10^-20
|1 square ångström (Ų)
| 
| 
|-
|10^-18
|1 square nanometre (nm²)
| 
| 
|-
|10^-12
|1 square micrometre (μm²)
| 
| 
|-
|colspan="4"|...
|-
|10^-8
| 
|0.055 mm²
|Size of a pixel on a typical modern computer display
|-
|10^-7
| 
| 
| 
|-
|10^-6
|1 square millimetre (mm²)
|2 mm²
|bgcolor="F0F0F0"|Area of the head of a pin
|-
|10^-5
| 
| 
|bgcolor="F0F0F0"|
|-
|10^-4
|1 square centimetre (cm²)
|5 cm²
|bgcolor="#E0E0E0"|Area of a typical postage stamp
|-
|10^-3
| 
|48 cm²
|bgcolor="#E0E0E0"|Largest side of a cigarette box
|-
|rowspan=3|10^-2
|rowspan=3| 1 square decimetre (dm²)
|0.060 m² ||bgcolor="#E0E0E0"| American letter paper (11 × 8½ inches, "A" size)
|-
|0.0625 m² ||bgcolor="#E0E0E0"| International A4 paper (210 × 297 mm)
|-
|0.093 m² ||bgcolor="#E0E0E0"| 1 square foot
|-
|rowspan=4|10^-1
|rowspan=4|  
| 0.125 m² ||bgcolor="#E0E0E0"| International A3 paper (297 x 420 mm)
|-
| 0.181 m² ||bgcolor="#E0E0E0"| Surface area of a basketball (diameter 24 cm)
|-
|0.250 m² ||bgcolor="#E0E0E0"| International A2 paper (420 x 594 mm)
|-
|0.500 m² ||bgcolor="#E0E0E0"| International A1 paper (594 x 841 mm)
|-
|rowspan=2|10⁰
|rowspan=2| 1 square metre
|1 m² ||bgcolor="#E0E0E0"| International A0 paper (841 x 1189 mm)
|-
|2-4 m² ||bgcolor="#E0E0E0"| Area of the top of an office desk
|-
|10¹
| 
|10-20 m²
|bgcolor="#E0E0E0"|A parking space
|-
|rowspan=2|10²
|rowspan=2|1 square decametre (dam²)
|100 m²
|bgcolor="#F0F0F0"|One are (a)
|-
|162 m²
|bgcolor="#F0F0F0"|Size of a volleyball field (9 x 18 metres)
|-
|rowspan=3| 10³
|rowspan=3|  
|4,047 m² ||bgcolor="#F0F0F0"| 1 acre
|-
|5,400 m² ||bgcolor="#F0F0F0"| Size of an American football field
|-
|7,300 m² ||bgcolor="#F0F0F0"| Size of a football (soccer) field
|-
|rowspan=2|10⁴
|rowspan=2| 1 square hectometre (hm²)
|10 000 m² ||bgcolor="#F0F0F0"| 1 hectare (ha)
|-
|55 000 m² ||bgcolor="#F0F0F0"| Base of the Great Pyramid of Giza (5.5 ha)
|-
|rowspan=3|10⁵
|rowspan=3|  
|190 000 m² ||bgcolor="#F0F0F0"| Irish National Botanic Gardens
|-
|440 000 m² ||bgcolor="#F0F0F0"| Vatican City
|-
|620 000 m² ||bgcolor="#F0F0F0"| Total floor area of the Pentagon
|-
|rowspan=3|10⁶
|rowspan=3| 1 square kilometre (km²)
|1.95 km² ||bgcolor="#F0F0F0"| Monaco (country ranked 192nd by area)
|-
|2.59 km² ||bgcolor="#F0F0F0"| 1 square mile
|-
|2.9 km² ||bgcolor="#F0F0F0"| City of London (not London)
|-
|rowspan=2|10⁷
|rowspan=2|  
|87.5 km² ||bgcolor="#F0F0F0"| Manhattan
|-
|61 km² ||bgcolor="#F0F0F0"| San Marino
|-
|rowspan=4|10⁸
|rowspan=4|  
|105 km² || Paris
|-
|122 km² || Walt Disney World
|-
|272 km² || Taipei City
|-
|641 km² || Toronto
|-
|rowspan=5|10⁹
|rowspan=5|  
|1092 km² || Hong Kong
|-
|1290 km² || Los Angeles, California, USA
|-
|2187 km² || Tokyo
|-
|5700 km² || Bali
|-
|8028 km² || Community of Madrid, Spain
|-
|rowspan=3|10¹⁰
|rowspan=3|  
|10,991 km² || Jamaica
|-
|68,870 km² || Lake Victoria
|-
|83,858 km² || Austria
|-
|rowspan=4|10¹¹
|rowspan=4|  
|103,000 km² || Iceland
|-
|301,230 km² || Italy
|-
|504,782 km² || Spain
|-
|780,580 km² || Turkey
|-
|rowspan=3|10¹²
|rowspan=3| 1 square megametre (Mm²) =
1 million km²
|1.00 Mm² || Egypt (country ranked 29th by area)
|-
|7.69 Mm² || Australia (country ranked 6th by area)
|-
|9 Mm² || Largest extent of the Roman Empire
|-
|rowspan=6|10¹³
|rowspan=6|  
|10 Mm² || Canada (including water)
|-
|17 Mm² || Russia (country ranked 1st by area)
|-
|30 Mm² || Africa
|-
|36 Mm² || Largest extent of the British Empire
|-
|38 Mm² || The Moon
|-
|77 Mm² || Atlantic Ocean
|-
|rowspan=4|10¹⁴
|rowspan=4|  
|144 Mm² || Surface area of Mars
|-
|150 Mm² || Land area of Earth
|-
|360 Mm² || Water area of Earth
|-
|510 Mm² || Total area of Earth
|-
|10¹⁵
| 
|7,700 Mm²
|Neptune
|-
|rowspan=2|10¹⁶
|rowspan=2|  
|44,000 Mm² || Saturn
|-
|64,000 Mm² || Jupiter
|-
|10¹⁷
| 
|4.6×10¹⁷ m²
|Area swept by the Moon's orbit of Earth
|-
|10¹⁸
|1 square gigametre (Gm²)
|6.1×10¹⁸ m²
|Surface area of the Sun
|-
|10¹⁹
| 
| 
| 
|-
|10²⁰
| 
| 
| 
|-
|10²¹
| 
| 
| 
|-
|rowspan=3|10²²
|rowspan=3|  
|1.1×10²² m² || Area swept by Mercury's orbit around the Sun
|-
|3.7×10²² m² || Area swept by Venus' orbit around the Sun
|-
|7.1×10²² m² || Area swept by Earth's orbit around the Sun
|-
|rowspan=2|10²³
|rowspan=2|  
|1.6×10²³ m² || Area swept by Mars' orbit around the Sun
|-
|2.81×10²³ m² || Surface area of a Dyson sphere with a radius of 1 AU
|-
|rowspan=2|10²⁴
|rowspan=2| 1 square terametre (Tm²)
|1.9×10²⁴ m² || Area swept by Jupiter's orbit around the Sun
|-
|6.4×10²⁴ m² || Area swept by Saturn's orbit around the Sun
|-
|rowspan=2|10²⁵
|rowspan=2|  
|2.6×10²⁵ m² || Area swept by Uranus' orbit around the Sun
|-
|6.4×10²⁵ m² || Area swept by Neptune's orbit around the Sun
|-
|10²⁶
| 
|1.1×10²⁶ m²
|Area swept by Pluto's orbit around the Sun
|-
|colspan="4"|...
|-
|10⁴¹
| 
|7×10⁴¹ m²
|Roughly the area of Milky Way's galactic disk
|}