Using coins for scale is discouraged as it will require people unfamiliar with them to look up the dimensions or guess, both of which defeat the purpose of the object in the first place. Coins can also reinforce a geographical bias, and some coins' designs are copyrighted.
Ideally, a photograph should include a ruler with the subject (example) or an added scale marking. SI ("metric") units are the most commonly used worldwide (see meter and centimeter).
Images with coins to indicate scale
Common coin diameters for reference:
U.S. dollar (as of?):
1¢: 19.05 mm, 0.75 in
5¢: 21.21 mm, 0.84 in
10¢: 17.91 mm, 0.71 in
25¢: 24.26 mm, 0.94 in
50¢: 30.61 mm, 1.22 in
$1: 26.5 mm, 1.02 in
Canadian dollar (as of?):
1¢: 19.05 mm, 0.75 in
5¢: 21.2 mm, 0.83 in
10¢: 18.03 mm, 0.71 in
25¢: 23.88 mm, 0.94 in
50¢: 27.13 mm, 1.07 in
$1: 26.5 mm, 1.02 in
$2: 28 mm, 1.1 in
Pound sterling as of 2021:
1p: 20.32 mm, 0.8 in
2p: 25.91 mm, 1.02 in
5p: 18 mm, 0.71 in
10p: 24.5 mm, 0.96 in
20p: 21.4 mm, 0.84 in
50p: 27.3 mm, 1.07 in
£1: 23.03–23.43 mm, 0.91–0.92 in
£2: 28.4 mm, 1.12 in
Euro as of 2002:
1c: 16.25 mm, 0.64 in
2c: 18.75 mm, 0.74 in
5c: 21.25 mm, 0.84 in
10c: 19.75 mm, 0.78 in
20c: 22.25 mm, 0.88 in
50c: 24.25 mm, 0.95 in
€1: 23.25 mm, 0.92 in
€2: 25.75 mm, 1.01 in
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คำอธิบายRifle cartridge comparison.jpg
Rifle cartridges - L to R: .50 BMG, 300 Win Mag, .308 Winchester, 7.62x39mm, 5.56 NATO, .22 LR
{{Information |Description=Rifle cartridges - L to R: .50 BMG, 300 Win Mag, .308 Winchester, 7.62 Russian Short, 5.56 NATO, .22 LR |Source=http://en.wikipedia.org/wiki/Image:Rifle_cartridge_comparison.jpg |Date=25 February 2006 |Author= Richard C. Wysong
ไฟล, rifle, cartridge, comparison, ไฟล, ประว, ไฟล, หน, าท, ภาพน, การใช, ไฟล, วนกลางไม, ภาพท, รายละเอ, ยดส, งกว, าน, rifle, cartridge, comparison, 8206, กเซล, ขนาดไฟล, โลไบต, ชน, ดไมม, image, jpeg, ปภาพหร, อไฟล, เส, ยงน, นฉบ, บอย, คอมมอนส, รายละเอ, ยดด, านล, าง. ifl prawtiifl hnathimiphaphni karichiflswnklangimmiphaphthimiraylaexiydsungkwani Rifle cartridge comparison jpg 8206 450 430 phikesl khnadifl 91 kiolibt chnidimm image jpeg rupphaphhruxiflesiyngni tnchbbxyuthi khxmmxns raylaexiyddanlang epnkhxkhwamthiaesdngphlcak ifltnchbbinkhxmmxns khxmmxnsepnewbistinokhrngkarsahrbekbrwbrwmsuxesri thi khunsamarthchwyid This image has currency in it to indicate scale Using coins for scale is discouraged as it will require people unfamiliar with them to look up the dimensions or guess both of which defeat the purpose of the object in the first place Coins can also reinforce a geographical bias and some coins designs are copyrighted Ideally a photograph should include a ruler with the subject example or an added scale marking SI metric units are the most commonly used worldwide see meter and centimeter Images with coins to indicate scale Common coin diameters for reference U S dollar as of 1 19 05 mm 0 75 in 5 21 21 mm 0 84 in 10 17 91 mm 0 71 in 25 24 26 mm 0 94 in 50 30 61 mm 1 22 in 1 26 5 mm 1 02 in Canadian dollar as of 1 19 05 mm 0 75 in 5 21 2 mm 0 83 in 10 18 03 mm 0 71 in 25 23 88 mm 0 94 in 50 27 13 mm 1 07 in 1 26 5 mm 1 02 in 2 28 mm 1 1 in Pound sterling as of 2021 1p 20 32 mm 0 8 in 2p 25 91 mm 1 02 in 5p 18 mm 0 71 in 10p 24 5 mm 0 96 in 20p 21 4 mm 0 84 in 50p 27 3 mm 1 07 in 1 23 03 23 43 mm 0 91 0 92 in 2 28 4 mm 1 12 in Euro as of 2002 1c 16 25 mm 0 64 in 2c 18 75 mm 0 74 in 5c 21 25 mm 0 84 in 10c 19 75 mm 0 78 in 20c 22 25 mm 0 88 in 50c 24 25 mm 0 95 in 1 23 25 mm 0 92 in 2 25 75 mm 1 01 in Deutsch nbsp English nbsp espanol nbsp francais nbsp Gaeilge nbsp italiano nbsp Plattduutsch nbsp portugues nbsp sicilianu nbsp svenska nbsp suomi nbsp makedonski nbsp russkij nbsp മലയ ള nbsp 한국어 nbsp 日本語 nbsp 中文 nbsp 中文 简体 nbsp עברית nbsp khwamyx khaxthibayRifle cartridge comparison jpg Rifle cartridges L to R 50 BMG 300 Win Mag 308 Winchester 7 62x39mm 5 56 NATO 22 LR wnthi 25 kumphaphnth ph s 2549 aehlngthima http en wikipedia org wiki Image Rifle cartridge comparison jpg phusrangsrrkh Richard C Wysong II ewxrchnxun iflxunthiichiflni nbsp Rifle cartridge comparison w scale png karxnuyatichsiththi Public domain Public domain false false khapheca phuthuxlikhsiththiinnganni khxmxbnganihepnsatharnsmbti prakasnimiphlthwolkinbangpraeths karkrathadngklawxacimsamarththaidtamkdhmaykhaphecaxnuyatihthukkhnmisiththiinkarichiflniinthukehtuphlkarich odyimmimienguxnikh ewnaetkdhmayimxnuyatihthaechnnnkhabrryayodyyxithyephimkhabrryaythrrthdediywephuxkhyaykhwamwaiflnimixaireyxrmnCommon rifle cartridges from the largest 50 BMG to the smallest 22 LRixethmthiaesdngxyuiniflniprakxbdwyexm 2 brawning 50 BMG nbsp xngkvsBarrett M82 nbsp xngkvssthanalikhsiththicopyrighted dedicated to the public domain by copyright holder nbsp xngkvsmilikhsiththisyyaxnuyatreleased into the public domain by the copyright holder nbsp xngkvswnthisrang wnkxtng25 kumphaphnth 2006MIME type nbsp xngkvsimage jpeg prawtiifl khlikwnthi ewlaephuxduiflthipraktinkhnann wnthi ewlarupyxkhnadphuichkhwamehn pccubn00 12 1 thnwakhm 2549450 430 91 kiolibt CarlJF Information Description Rifle cartridges L to R 50 BMG 300 Win Mag 308 Winchester 7 62 Russian Short 5 56 NATO 22 LR Source http en wikipedia org wiki Image Rifle cartridge comparison jpg Date 25 February 2006 Author Richard C Wysong hnathimiphaphni hnatxipni oyngmathiphaphni exm 2 brawning karichiflswnklang wikixuntxipniichiflni karichbn ar wikipedia org خرطوش سلاح karichbn be tarask wikipedia org 50 BMG Pramezhkavy patron karichbn be wikipedia org Patron karichbn bg wikipedia org 50 BMG karichbn bn wikipedia org ক য ল ব র karichbn ca wikipedia org 12 7 99 mm OTAN karichbn cs wikipedia org Seznam naboju do rucnich zbrani Seznam naboju do pusek 7 62 51 mm NATO 308 Winchester 12 7 99 mm NATO karichbn da wikipedia org Kaliber karichbn de wikipedia org Munition karichbn de wikibooks org Schusswaffen Kapitel 5 karichbn el wikipedia org Diametrhma karichbn en wikipedia org Caliber Table of handgun and rifle cartridges 50 BMG User Crimson30 List of rifle cartridges Ammunition Rifle cartridge 7 62 51mm NATO karichbn eo wikipedia org Kartoĉo karichbn es wikipedia org 12 7 99 mm OTAN karichbn et wikipedia org Padrun Kasutaja Oaava padrun karichbn eu wikipedia org Kalibre suzko arma karichbn fa wikipedia org کالیبر ۵۰ بی ام جی karichbn fi wikipedia org Tarkkuuskivaari 12 7 99 mm NATO karichbn fr wikipedia org 7 62 51 mm OTAN Carabine de chasse 12 7 99 mm OTAN Liste des munitions d armes d epaule Wikipedia Le Bistro 23 octobre 2022 karichbn gan wikipedia org 子彈 karichbn hu wikipedia org 50 BMG karichbn hy wikipedia org Դիպուկահար հրացան karichbn id wikipedia org Kaliber senjata 50 BMG karichbn it wikipedia org Munizione Template Cartuccia 12 7 99 mm NATO Template Cartuccia man karichbn it wikiquote org Calibro armi karichbn ja wikipedia org 12 7x99mm NATO弾 ハンドロード 中間弾薬 dukarichthwolkephimetimkhxngiflni ekhathungcak https th wikipedia org wiki ifl Rifle cartridge comparison jpg, wikipedia, วิกิ หนังสือ, หนังสือ, ห้องสมุด,
