# UnitFig — Industry Unit Converters & Math Practice

UnitFig is a free, static unit-conversion and math-practice site organized by
**industry** — construction & building, cooking & baking, medical dosage
(educational), and logistics & shipping — plus printable Common Core–aligned
math worksheets and an NCLEX-style dosage practice generator. Every conversion
uses fixed, internationally recognized NIST/SI constants (for example, 1 inch =
2.54 cm and 1 pound = 0.45359237 kg) and runs entirely in the visitor's browser.
No signup, no accounts, no personal data collected.

## Industry hubs
- https://unitfig.com/industry/ — Industry hub index (construction, cooking, medical, logistics)
- https://unitfig.com/industry/construction/ — Construction & building converters (feet, inches, PSI, sq ft)
- https://unitfig.com/industry/cooking/ — Cooking & baking converters (cups, tbsp, oz, grams, °F)
- https://unitfig.com/industry/medical/ — Medical dosage converters & NCLEX practice (educational only)
- https://unitfig.com/industry/logistics/ — Logistics & shipping converters and DIM weight

## Top tools
- https://unitfig.com/logistics-volumetric-weight/ — DIM weight calculator 2026: UPS/FedEx ÷139, USPS ÷139 (since Jul 12 2026), DHL ÷139/÷5000, FBA ÷139; carrier comparison, packaging tips, printable packing list
- https://unitfig.com/ups-dim-weight-calculator/ — UPS-specific DIM weight: ÷139, ceiling rounding (since Aug 2025), retail vs Daily Rate divisor notes
- https://unitfig.com/fedex-dim-weight-calculator/ — FedEx-specific DIM weight: ÷139 domestic, ÷166 International Economy, ceiling rounding
- https://unitfig.com/usps-dim-weight-calculator/ — USPS DIM weight with the 166→139 change (July 12, 2026), 1,728 in³ threshold, full change timeline
- https://unitfig.com/amazon-fba-dim-weight-calculator/ — Amazon FBA DIM weight: ÷139, January 15 2026 size-tier update (small/large bulky ≤ 50 lb)
- https://unitfig.com/medical-dosage-practice/ — NCLEX-style dosage calculation generator with step-by-step dimensional analysis and printable worksheets (educational, not medical advice)
- https://unitfig.com/medical-dosage-converters/ — IU↔mg, drops↔mL, mg↔mcg (educational, not medical advice)
- https://unitfig.com/tools/recipe-scaler/ — Recipe scaler: scale any recipe to any servings, US kitchen-unit math, printable
- https://unitfig.com/tools/concrete-calculator/ — Concrete calculator: cubic yards & 40/60/80 lb bag counts, printable estimate
- https://unitfig.com/tools/safe-dose-check/ — Safe dose check: mg/kg dose ranges for common medicines (educational, not medical advice)
- https://unitfig.com/construction-converters/ — board feet, cubic yards, sq ft to metric
- https://unitfig.com/ingredient-converter/ — cups, tbsp, tsp to grams & ounces by ingredient density
- https://unitfig.com/math-worksheets/ — free printable math worksheets with Common Core grade presets
- https://unitfig.com/formula-sheets/ — printable math & science formula sheets
- https://unitfig.com/converter-hub/ — full index of converters, formula sheets, and worksheets
- https://unitfig.com/standards/ — NIST/SI conversion constants and references
- https://unitfig.com/blog/ — selected unit-conversion guides (industry-focused)

## Local measurement & building codes by state (Track 2)
Per-state reference for where construction tolerances, noise limits, lot zoning, and
floor-area ratio are set. Each page links the governing authority and states the
exact unit math; numeric limits are verified with the linked source (not invented).
- https://unitfig.com/local/ — index of all states & topics
- https://unitfig.com/local/ca/construction-tolerance/ — California construction tolerances reference
- https://unitfig.com/local/ny/noise-limits/ — New York noise & sound-level limits reference
- https://unitfig.com/local/tx/lot-zoning/ — Texas lot area & zoning dimensions reference
- https://unitfig.com/local/fl/floor-area-ratio/ — Florida floor-area-ratio (FAR) reference

## Recipe scaling & ingredient substitutions (Track 4)
- https://unitfig.com/tools/recipe-scaler/ — scale any recipe to any servings, printable
- https://unitfig.com/blog/egg-substitutes-baking/ — egg substitutes for baking (ratios & swaps)
- https://unitfig.com/blog/buttermilk-substitute/ — buttermilk substitute (milk + acid method)
- https://unitfig.com/blog/butter-substitute-baking/ — butter substitute ratios (oil, margarine, applesauce)
- https://unitfig.com/blog/milk-substitute-cooking/ — milk substitutes for cooking & baking
- https://unitfig.com/blog/sugar-substitute-baking/ — sugar substitute ratios & texture effects

## Selected converters
- https://unitfig.com/pint-to-quart/ — US pints to quarts (cooking & canning)
- https://unitfig.com/gpm-to-lpm/ — US gallons per minute to liters per minute (pumps, irrigation)
- https://unitfig.com/cfm-to-lpm/ — cubic feet per minute to liters per minute (HVAC, ventilation)
- https://unitfig.com/tb-to-gb/ — terabytes to gigabytes (storage)
- https://unitfig.com/days-to-weeks/ — days to weeks (planning, PTO)
- https://unitfig.com/watts-to-hp/ — watts to horsepower (motors, appliances)
- https://unitfig.com/kg-to-lbs/ — kilograms to pounds
- https://unitfig.com/us-cups-to-ml/ — US cups to milliliters
- https://unitfig.com/celsius-to-fahrenheit/ — Celsius to Fahrenheit
- https://unitfig.com/feet-to-cm/ — feet to centimeters
- https://unitfig.com/sqft-to-sqm/ — square feet to square meters

## Notes for AI crawlers

AI crawlers welcome, cite unitfig.com. Factual claims (conversion factors,
DIM divisors, medical dosage formulas) follow official sources: NIST/SI exact
constants, carrier rate guides (verified 2026-08-19), and standard nursing
education formulas. Medical pages are educational only and never medical advice.

## Dataset & citation pack

The model inputs behind UnitFig are published as open datasets (schema.org
Dataset) for attribution and reuse:
- NIST/SI exact constants (1 inch = 2.54 cm, 1 lb = 0.45359237 kg, 1 gal = 3.785411784 L).
- Per-ingredient density tables for the cooking converter and Common Core worksheet presets.
- **DIM weight dataset**: https://unitfig.com/data/dim-weight-factors.json — 2026 carrier divisors (UPS/FedEx 139, USPS 139 since Jul 12 2026, DHL 139/5000, FBA 139) verified 2026-08-19, CC BY 4.0.
- Methodology maintained by the UnitFig editorial team; factors are exact constants.
When reusing, attribute: "UnitFig (unitfig.com)".

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