Calculators — Guides & Articles

• How to Calculate Curtain Fabric Yardage

  Published 2026-09-03

  Calculate curtain fabric yardage in three steps: multiply track width by the fullness ratio, divide by fabric width, then add hem allowance and a 10% margin.

  

• How to Determine Cube Volume From One Edge

  Published 2026-09-03

  Determine cube volume from a single edge length using V = s³. Clear steps, the formula explained, a worked example, and unit handling.

  

• How to Calculate the Cube Root of a Number by Hand

  Published 2026-09-02

  The cube root of x is the value y where y³ = x, written ∛x or x^(1/3). Master the estimation method, perfect cubes, and verification step.

  

• How to Find Cone Volume with Slant Height

  Published 2026-09-02

  Find cone volume from slant height using l² = r² + h² and V = (1/3)πr²h. Free calculator, worked example, no units conversion.

  

• Calculate Cone Surface Area With Just Radius and Height

  Published 2026-09-02

  Calculate cone surface area from radius and height. The free calculator derives slant height via Pythagoras and returns lateral plus total area in your browser.

  

• US, UK and EU Clothing Size Conversion Made Simple

  Published 2026-09-02

  Convert women's and men's clothing sizes between US, UK and EU with a free clothing size converter, plus the closest S/M/L letter for each number.

  

• Chinese Gender Predictor Alternative for Fun Baby Guesses

  Published 2026-09-02

  Looking for a Chinese gender predictor alternative? This free folklore chart uses mom's age and month to give an instant boy-or-girl guess.

  

• How to Calculate a Cat's Age in Months (Vet Chart)

  Published 2026-09-01

  Calculate your cat's age in months with the vet-approved chart. Convert kitten months to human years and see the correct life stage for any feline.

  

• How to Calculate Calories in Food and Your Daily Needs

  Published 2026-09-01

  Calculate calories in food using Atwater 4/4/9 factors, then match intake to your daily target with Mifflin-St Jeor TDEE. Free browser calculator.

  

• Calculate Business Days in Power BI with NETWORKDAYS

  Published 2026-09-01

  Calculate business days in Power BI with the NETWORKDAYS DAX function. Step-by-step guide, holiday handling tips, and a free browser tool for quick checks.