Calculators — Guides & Articles

• How to Convert Date Format in SQL: CONVERT, CAST, FORMAT

  Published 2026-08-18

  Convert date format in SQL with CONVERT, CAST, FORMAT. SQL Server style codes 101, 103, 120 explained, plus ISO 8601 for portable inserts.

  

• Google Sheets Date Difference: 3 Reliable Methods

  Published 2026-08-18

  Need a date difference in Google Sheets? Use DATEDIF for unit breakdowns or simple subtraction for raw days, or try a free tool for a complete instant answer.

  

• Add Days to a Date for Chart Rows and Milestones

  Published 2026-08-18

  Add days to any date for chart planning with calendar-accurate results. Learn the exact steps, leap-year rules, and end-of-month clamping so your chart…

  

• Convert Storage Values Stored as Text in Excel

  Published 2026-08-18

  When Excel cells hold storage sizes like "1.5 GB" as text, formulas break. Here's how to fix them and convert units with the free Data Storage Converter.

  

• Calculate Cylinder Volume in kg Using Density

  Published 2026-08-18

  To turn cylinder dimensions into kg, multiply volume by density. Use V = πr²h to find cubic meters, then multiply by density in kg/m³.

  

• How to Calculate Curtain Fabric With Pattern Repeat

  Published 2026-08-17

  Calculate curtain fabric with pattern repeat: find widths, round each cut length up to a full repeat, then add 10% for matching with a free tool.

  

• How to Count Cube Volume Step by Step

  Published 2026-08-17

  Count cube volume by cubing one side length with V = s³. The free Cube Volume Calculator gives live results plus surface area and diagonals.

  

• How to Calculate Cube Root on a Simple Calculator Without ∛

  Published 2026-08-17

  No ∛ button on your simple calculator? Use this free cube root calculator for positives, negatives, and decimals, with a built-in (∛x)³ = x check line.

  

• Count Cone Volume with the (1/3)πr²h Formula

  Published 2026-08-17

  Count cone volume in any unit using V = (1/3)πr²h. Enter radius and height in the free Cone Volume Calculator for instant results plus slant height.

  

• Slant Height Powers a Cone's Lateral and Total Area

  Published 2026-08-17

  The slant height l = √(r²+h²) is the key value behind every cone surface area formula. Learn why radius, height, and slant fit together.