20 × 30 mm stamp
A postage stamp is a small adhesive label placed on mail to show payment for postal services.
How big is it?
6 cm² in area
Also 0.006458 ft²
Area · example
A little perspective
About 4 times the area of Fingernail.
Fingernail: A fingernail is the hard, protective covering at the tip of a human finger, composed of keratin.
Measurements, assumptions & sources +
20 × 30 mm stamp
Defined 20 × 30 mm example; postage stamp formats vary.
Defined examples — our methodology
The marked area is calibrated. Unmeasured illustration details are representative.
Fingernail
Example 15 × 10 mm fingernail; 1.5 cm² area.
Defined examples — our methodology
The marked area is calibrated. Unmeasured illustration details are representative.
Change your perspective
Put it next to…
Choose a suggestion to redraw the comparison, or open its page to learn what it is.
Why this measurement?
Why we use 6 cm²
For comparison, this page uses area. This is labelled example: an explicit comparison model rather than a claim that every example has the same value.
Defined 20 × 30 mm example; postage stamp formats vary.
The identifying illustration and the numerical comparison remain separate. How calibrated comparisons work →
Recorded properties
20 × 30 mm stamp dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 6 cm² | Not recorded | example | |
| 2 cm | Not recorded | example | |
| 3 cm | Not recorded | example |
Around this scale
Go smaller. Go bigger.
These links use compatible area records, ordered around the selected value.
Nearest lower value · PeopleFingernail1.5 cm²A fingernail is the hard, protective covering at the tip of a human finger, composed of keratin.
Nearest higher value · Everyday thingsPayment card46.21 cm²A payment card is a plastic card used to make electronic payments, such as credit or debit transactions.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
There’s always another scale
Follow your curiosity.
PeopleFingernail1.5 cmA fingernail is the hard, protective covering at the tip of a human finger, composed of keratin.
Everyday things10 mm round button1 cmA round button is a small disc-shaped fastener sewn onto clothing to join fabric.Everyday thingsPayment card8.56 cmA payment card is a plastic card used to make electronic payments, such as credit or debit transactions.
Everyday thingsA7 paper10.5 cmA7 paper is a compact ISO 216 paper format used for small notes, cards and labels.
Everyday things10 cm tile10 cmA small tile is a square piece, often ceramic or stone, used to cover floors or walls.
Everyday thingsSmartphone15 cmA smartphone is a portable electronic device that combines mobile phone functions with internet access and apps.
Everyday thingsA6 paper14.8 cmA6 paper is an ISO 216 paper format commonly used for postcards, small flyers and pocket stationery.
Everyday thingsA5 paper21 cmA5 paper is an ISO 216 paper format commonly used for notebooks, leaflets and small documents.