Guides
Guides — guides, articles and tools from CalcaTools covering every topic in this category. Free, fast, browser-based explainers with no sign-up.
Fraction to Percent: How to Convert (with Chart)
Fraction to percent conversion explained: divide numerator by denominator to get a decimal, then multiply by 100, with examples like 2/5 converted step by step.
Adding & Simplifying Fractions: Step-by-Step
Step-by-step rules for adding fractions using common denominators and reducing results to simplest form.
How to Calculate Square Footage (Room, Wall & Lot)
How to calculate square footage for rooms, walls, and lots, with adjustments for triangles and multi-sided spaces.
How Many Hours Is My Shift? Hours Between Two Times
Shows how to find hours between two times or a shift length by subtracting start time from end, with practical examples.
Hourly to Salary (and Back): Full Conversion Chart
Hourly-to-salary conversion using the 2,080 working hours per year rule for full-time jobs, showing how to convert hourly wages to annual salary and vice versa.
How Old Am I If I Was Born in 2000? Birth Year Age Chart
Age chart for those born in 2000: you’re 26 in 2026 if your birthday passed, otherwise 25, plus a simple calculation method.
Fraction to Decimal: Chart, Formula & Worked Examples
Convert fractions to decimals by dividing numerator by denominator; convert mixed numbers by converting the fractional part.