Educational Learning Tools
This page lists all educational tools available on HDmarathi.com. Each tool is designed as a short learning lesson that explains concepts, formulas, and examples before calculation.
Everyday Math Concepts
Percentage Calculator
Understand how percentages represent parts of a whole.
Simple Interest Calculator
Learn how interest is calculated using a basic formula.
Compound Interest (Concept)
Understand how interest builds over time conceptually.
Average (Mean) Calculator
Learn how averages are calculated step by step.
Ratio Calculator
Understand ratios and proportional relationships.
Fraction to Decimal
Learn how fractions are converted into decimals.
Student & Academic Tools
Marks to Percentage
Understand how exam marks are converted into percentages.
GPA Calculator
Learn how grade point averages are calculated.
CGPA Calculator
Understand cumulative grade point averages.
Grade Calculator
Learn how grades are derived from scores.
Attendance Calculator
Understand attendance percentage calculations.
Study Time Planner
Learn how to distribute study time logically.
Measurement & Health Concepts
Number System & Logic
Time, Date & Daily Calculations
Date Difference Calculator
Understand how the number of days between two dates is calculated.
Time Duration Calculator
Learn how time intervals are added and subtracted.
Weeks to Days Converter
Understand week-to-day conversion with examples.
Days to Hours Converter
Learn how days are converted into hours.
Age in Days Calculator
Understand age calculation expressed in days.
Logical & Learning Helpers
Percentage Word Problems
Learn how percentages are applied in real-life examples.
Ratio Word Problems
Understand ratios through practical problem-solving.
Basic Algebra Helper
Learn how simple algebraic expressions work.
Common Math Formulas Guide
A reference guide explaining commonly used formulas.
Unit Conversion & Measurement Basics
Length Unit Converter
Understand conversion between common length units.
Area Unit Converter
Learn how area units relate to each other.
Volume Unit Converter
Understand volume measurement and conversions.
Speed Calculator
Learn the relationship between speed, distance, and time.
Temperature Converter
Understand how temperature scales convert.