Education Calculators
Use percentage, averages, proportions, fractions, GCD, LCM, and math calculators for homework and everyday learning.
Education calculators keep common classroom and everyday math tasks in one place with formulas visible beside each tool.
Why this category matters
Education calculators group related formulas so visitors can compare nearby tools instead of landing on a single isolated calculator page.
How to choose a calculator
Pick the task that matches the result you need, then review the formula shown on the calculator page. Related tools are linked when another calculation may fit better.
Accuracy guidance
Enter the original values carefully and round after the result is shown. For health, finance, construction, or schoolwork, verify the formula matches the method your task expects.
What to open next
Open the calculator that matches the result label you need. If the first result is not the right fit, use the category list and related links to move to a nearby formula without starting your search over.
Education tools
Percentage Of Calculator
Calculate x% of any value instantly.
Formula: Result = (percentage / 100) * base value
Percentage Change Calculator
Find increase or decrease percentage between two values.
Formula: Change % = ((new - old) / old) * 100
Rule of Three Calculator
Solve proportions quickly: if a relates to b, find x for c.
Formula: x = (b * c) / a
Average Calculator (4 values)
Compute the arithmetic mean for four numbers.
Formula: Average = (n1 + n2 + n3 + n4) / 4
GCD Calculator
Find the greatest common divisor (GCD / GCF) of two integers.
Formula: Use Euclidean algorithm repeatedly until remainder is 0
LCM Calculator
Find the least common multiple (LCM) of two integers.
Formula: LCM(a, b) = |a * b| / GCD(a, b)
Fraction Simplifier
Reduce fractions to simplest form and view decimal value.
Formula: Divide numerator and denominator by their GCD
Ratio Calculator
Simplify or scale ratios.
Formula: Ratio = a:b, Scaled = a*x:b*x
Fraction to Decimal Calculator
Convert a fraction to decimal form.
Formula: Decimal = Numerator / Denominator
Decimal to Fraction Calculator
Convert a decimal to a simplified fraction.
Formula: Fraction ≈ decimal approximated
Decimal to Percentage Calculator
Convert decimal to percentage and vice versa.
Formula: Percentage = Decimal * 100