UnitPlanet

Changelog

RSS

May 2026

  • Added

    Pets category launched: dog age calculator (AAHA size-adjusted, 5 size classes), cat age calculator (AAFP/AAHA step-function), pet weight converter (lb/kg/oz), aquarium volume calculator (rectangular and cylindrical, in/cm), and aquarium substrate calculator (gravel, fine sand, planted substrate). PetsDisclaimer added to all pets tool pages. Includes Dog Age Chart and Aquarium Reference Chart reference pages.

  • Corrected

    Fixed duplicate '| UnitPlanet' suffix in <title> on all reference and category pages. Root layout template was appending the suffix a second time; fixed by using absolute title metadata on reference and category pages.

  • Updated

    Reference page Article schema now includes image, datePublished, mainEntityOfPage, and publisher fields. Author markup removed — pages use 'Last updated' dates without named bylines.

  • Updated

    Body Fat Percentage Reference Chart intro tightened — removed redundant 'consult a healthcare provider' sentence that duplicated the FitnessDisclaimer banner above it.

  • Added

    International Clothing Size Chart launched — women's and men's tops, men's dress shirts, jeans, women's shoes, and men's shoes across US, UK, EU, Japan, and Australia. Sourced from ASOS, H&M, and Zara size guides.

  • Added

    USDA Plant Hardiness Zone Reference Chart launched — all 26 zones (1a–13b) with °F and °C ranges, typical US regions, and frost date windows for zones 3–10. Sourced from USDA ARS PHZM 2023 and NOAA 30-year normals.

  • Added

    Body Fat Percentage Reference Chart launched — ACSM ranges by sex, five-method accuracy comparison (Navy, skinfold, BIA, DEXA, hydrostatic), and the Hodgdon & Beckett (1984) Navy formula. Sourced from ACSM Guidelines 11th ed., Hodgdon & Beckett (1984), and AHA 2023.

  • Added

    Tire Size Chart launched — P-metric code decoder, speed rating letters (Q through Y), and load index weight limits (lb and kg). Sourced from Tire Rack and ETRTO standards.

  • Added

    Knitting Needle & Crochet Hook Size Chart launched — US, metric (mm), and UK/Canada sizes for needles and hooks, with yarn weight recommendations (CYC 0–7) and WPI reference. Sourced from Craft Yarn Council standards, ChiaoGoo, and Addi.

  • Added

    Kids Shoe Size Chart by Age launched — infant through age 10, US/UK/EU/Japan sizes with foot length references, sourced from Stride Rite, Nike, and Clarks.

  • Added

    Complete Cooking Conversion Chart launched — volume, weight, oven temperatures (with Gas Mark), butter equivalents, common ingredient gram weights, and US vs. metric cup in one sourced reference page.

  • Updated

    Refined image pipeline — Pinterest pins redesigned as standalone reference cards with quick-lookup tables, OG/Twitter layout fixed, and key facts updated to user-relevant examples across all 79 tools.

  • Added

    Dynamic OG image pipeline launched — all tool and category pages now serve preview images for Open Graph, Twitter cards, Pinterest, and square social formats.

  • Added

    Fitness expansion: pace calculator, BMI, 1-rep max estimator, plate math calculator, and body fat estimator (US Navy method) all launched as draft tools.

  • Updated

    Weight converter (kg ↔ lbs) expanded to three-way conversion with stone support.

  • Updated

    Plate math calculator rewritten with kg plate support, per-plate enable/disable toggle, and closest-achievable-weight fallback.

  • Updated

    1-rep max estimator now shows a full percentage table (50%–95%) for training programming alongside Epley and Brzycki estimates.

  • Added

    FitnessDisclaimer banner added to all fitness tool pages — clarifies outputs are reference measurements, not health advice.

  • Added

    Money Math category launched with four tools: compound interest, loan amortization, mortgage payment calculator, and APR/APY converter.

  • Added

    MoneyMathDisclaimer banner added to all money math tool pages — clarifies these are formula calculators, not financial advice.

  • Added

    Garden category launched: seed spacing, lawn seed quantity, rainfall converter, mulch volume, and USDA hardiness zone lookup by ZIP code.

  • Added

    Automotive category launched: tire size decoder, torque converter, horsepower converter, 0–60 to 0–100 conversion, and tire pressure (psi / bar / kPa).

  • Added

    Crafts & Hobbies category launched: yarn weight reference, knitting needle and crochet hook sizes, fabric yardage, bead sizes, drill bit sizes, and sandpaper grit chart.

  • Added

    Tech category launched: data storage (binary vs SI), bandwidth, pixel units (px/rem/em/pt), aspect ratio, DPI/PPI calculator, color converter, and video file size estimator.

  • Added

    Writing Tools category launched: words-to-pages with configurable format settings, reading time estimator (Brysbaert 2019 238 wpm baseline), and paper size reference.

  • Added

    Apparel & Sizing category launched: ring size, hat size, bra size, and glove size charts across US, UK, EU, and international systems.

  • Added

    Travel category launched: currency converter, fuel economy, shoe and clothing size by country, and luggage dimension converter.

  • Added

    Time & Date category launched: timezone converter, date difference, age calculator, business days, decimal hours, and Unix timestamp converter.

  • Added

    Units category launched: length, mass, volume, area, temperature, and speed — all in one multi-unit converter with NIST SP 811 exact factors.

  • Added

    Home & DIY category launched: square footage, cubic feet, paint coverage, and length converters.

  • Added

    Parenting category launched: baby clothing sizes, kids shoe sizes, and diaper usage estimator.

  • Added

    Cooking category launched: cups to ml, tablespoons to teaspoons, oven temperature, oz to grams, butter converter, egg size substitution, pan size converter, recipe scaler, and yeast converter.

  • Added

    Homepage reorganized into four labeled groups — Everyday, Personal, Work & Money, and Specialty — for faster navigation across all 14 categories.

  • Updated

    Search updated with category-aware ranking and aliases covering all tool slugs, common alternate names, and unit synonyms.

  • Added

    Site deployed to Vercel at unitplanet.com.

  • Added

    Changelog launched.