item.guide

Comprehensive international reference for shoe size conversions (adult, kids, baby, widths), clothing sizes (men's, women's, bra sizing, kids), accessory sizing (hats, rings, belts, gloves, socks), and garment trims and laundry care symbols.

Accessories • Clothing Sizes • Jewelry & Precious Metals • Luggage & Travel • Shoe Sizes • Trims & Care

Technical standards and engineering specifications for electric vehicle charging connectors, tire and wheel geometry, engine oil viscosity and lubricants, OBD-II onboard diagnostics protocols, automotive lighting sockets, and trailer towing standards.

Diagnostics & Protocols • Electrical & Ignition Standards • Engine Oil & Fluids • EV Charging • Light Bulbs & Sockets • Tires & Wheels • Towing & Hitches

Comprehensive international reference for airport & airline codes, flight terminology & abbreviations, runway infrastructure, aircraft sizing dimensions, cargo ULD containers, cabin galley standards, and avionics protocols.

Air Cargo & Unit Load Devices • Air Traffic & Location Codes • Aircraft Sizing & Categories • Airport Runways & Infrastructure • Aviation Terminology & Decoders • Avionics & Flight Operations • Cabin Interiors & Galley Standards

Authoritative technical reference for building and construction: pipe thread geometry (NPT/BSPP/BSPT), plumbing pipe schedules, copper and PEX tubing, dimensional lumber, masonry CMU blocks, drywall assemblies, structural steel, and door rough openings.

Doors & Walls • Electrical & Wiring • Lumber & Wood • Masonry & Structural • Plumbing & Piping • Structural & HVAC • Thermal Insulation & Acoustics

Comprehensive technical reference database for international country standards organized by UN M49 macro-regions. Covers ISO 3166 codes, mains voltage and electrical plugs, calling codes, driving side regulations, currency standards, paper dimensions, emergency numbers, and administrative postal formats.

Africa • Asia • Europe • Latin America & the Caribbean • Northern America • Oceania

Technical reference standards for consumer and enterprise electronics, spanning audio-video interfaces, battery form factors, computer hardware, mains power plugs, network infrastructure, and wireless communications.

Audio & Video • Batteries • Cameras & Optics • Computer Components • Mains Power • Networking • Wireless Technologies

Standardized nutritional profiles, macronutrient density, glycemic index values, lipid fatty acid distributions, smoke points, micronutrient RDAs, and food chemistry specifications.

Beans, Lentils & Pulses • Cheeses & Cultured Dairy • Coffee Roasts & Botanical Teas • Cooking Oils & Fats • Dairy & Plant-Based Milks • Eggs & Egg Products • Essential Vitamins & Minerals • Fish & Seafood • Flours & Starches • Food Additives & E-Numbers • Fresh Fruits & Berries • Fresh Meats & Poultry • Nuts, Seeds & Kernels • Staple Grains & Cereals • Sugars & Alternative Sweeteners • Vegetables & Leafy Greens

Comprehensive reference standards for tabletop, board, card, dice, and tile games. Covers official tournament rules, dispute resolutions, deck compositions, scoring matrices, and physical gaming supplies.

Board Games • Card Games • Dice Games • Gaming Supplies • Tile & Domino Games

Standardized mechanical fasteners, machine screw threads, drive geometries, head profiles, nuts, washers, and structural wall anchors defined by ISO, DIN, ANSI/ASME, and IFI engineering specifications.

Anchors & Plugs • Drive Types • Head Styles • Imperial Threads (UNC/UNF) • Metric Threads (ISO) • Nuts & Threaded Inserts • O-Rings & Rotary Seals • Tool Drives & Bit Shanks • Washers & Retaining Rings

Standardized dimensions, capacities, coverage formulas, and technical specifications across cookware, tableware, bedding, lawn care, outdoor living, and home fixtures.

Bedding & Linens • Indoor Climate & Fixtures • Kitchen & Culinary • Lawn & Garden • Outdoor Living • Paint & Surface Prep • Storage & Organization • Tableware & Dining

Standardized office supplies, paper dimensions, envelope formats, fastening mechanisms, ring binders and hole punch spacing, pen refills, and organizational filing systems.

Binders & Hole Punching • Folders & Filing • Paper Formats • Pens, Inks & Leads • Shipping, Boxes & Logistics • Staples & Clips • Tapes & Notes

Technical standards, regulation dimensions, ball specifications, playing surface boundaries, cycling component standards, and outdoor safety ratings.

Ball Sports • Camping & Climbing • Courts & Fields • Cycling • Target & Cue • Water & Snow • Weightlifting & Strength Standards