StashIQ vs Model Scale Calculator

StashIQ is the pocket companion for plastic scale model builders and collectors. Whether you build aircraft, armor, ships, cars, figures, or sci-fi, StashIQ helps you catalog what you own, plan what you want, and never buy a duplicate kit again. BROWSE A HUGE CATALOG Search a catalog of 88,000+ scale model kits across every major manufacturer, scale, and subject. Find the exact kit, see its details, and jump straight to retailers when you're ready to buy. SCAN TO IDENTIFY ANY KIT Point your camera at a kit's barcode and StashIQ identifies it instantly — then add it to your stash or want list in one tap. Can't find it? Share a link or add it manually, and it gets reviewed to grow the catalog for everyone. TRACK YOUR STASH Log every kit you own in one organized place. Know your collection at a glance — no more standing in a hobby shop wondering if you already have that Spitfire. BUILD A WANT LIST Keep a running wish list of the kits you're after. When you're browsing or scanning, you'll always know what's still on your list. FIND THE BEST PRICE See where to buy the kits you want and compare retailers, so you can grab the deal when it's right. MADE FOR MODELERS StashIQ was built by scale modelers who were tired of tracking their stash in spreadsheets. It's fast, focused, and designed around how hobbyists actually shop and build. SUBSCRIPTIONS StashIQ is free to start. Upgrade for higher stash and want-list limits, unlimited barcode scans, and an ad-free experience: • Collector — $0.99/month • Trader — $2.99/month • Professional — $4.99/month Prices may vary by region. Subscriptions renew automatically unless canceled at least 24 hours before the end of the period; manage or cancel anytime in your App Store account settings. Questions or feedback? Reach us at support@iqsuite.co. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.knotsoftware.com/stashiq/privacy

A scale converter for people who build models. Pick a scale — HO, N, O, 1:35 armour, 28mm heroic, 1/4" = 1' — type a dimension, and read the answer as you type. Free, offline, no account, no ads. THREE ANSWERS, ONE SCREEN • Real → model — how big is a 40-foot boxcar in HO? • Model → real — this part measures 92 mm; what is that full size? • What scale is this? — give a real length and the model length it has to come out at, and get the ratio. COMPARE ACROSS SCALES A second view takes one measurement and shows it in every scale in a hobby group at once — model railway gauges, military armour, aircraft, tabletop miniatures — with a proportional bar per row so you can judge the sizes by eye instead of reading numbers. UNITS HOBBYISTS ACTUALLY TYPE It parses what you would write on a workbench note: 250mm, 2.5 cm, 5' 6", 5ft 6in, 1 1/2", 3/4", 1-1/2". Feet-and-inches and fractional inches are first-class output formats, not an afterthought — fractions come back as fractions, rounded to the precision you choose. SCALES INCLUDED • Model railways — Z, N, TT, HO, OO, S, O, G and more • Military and armour — 1:16, 1:35, 1:48, 1:72 • Aircraft — 1:32, 1:48, 1:72, 1:144 • Cars — 1:18, 1:24, 1:43, 1:64 • Tabletop and wargaming — 15mm, 28mm heroic, 32mm, 54mm • Architecture — imperial drawing scales like 1/4" = 1' and metric 1:50, 1:100 • Any custom ratio you type WORKS COMPLETELY OFFLINE No account, no sign-in, no sync, no paywall and no advertising. Every calculation happens on your device, and nothing you type is ever sent anywhere. The only thing the app ever sends is anonymous usage data — which scales and modes get used — and you can switch that off in Settings. For model railroaders, scale modellers, miniature painters, RC builders, dollhouse makers, architects and anyone who has ever stood in a hobby shop doing long division on their phone.