Solverly
Financial
Fitness & Health
Math
Geometry
Date & Time
School
Home
/
Math Calculators
Math Calculators
Percentages, fractions, statistics, and scientific mode—everyday math done right.
Percentages & Ratios
📊
Percentage Calculator
Percent of, what percent, and change.
Fractions & Rational
¼
Fraction Calculator
Add, subtract, multiply, divide, simplify.
➰
LCM & GCD
Least common multiple and greatest common divisor.
Statistics
σ
Standard Deviation
Population or sample with steps.
𝑧
z-Score & Percentile
z ↔ percentile; tails areas.
🔔
Normal Distribution
CDF/quantile (one/two-tailed) with chart.
🧮
Permutations & Combinations
nPr, nCr with/without repetition.
±
Confidence Interval
Mean or proportion; bounds & margin.
Scientific & General
🧮
Scientific Calculator
Live scientific mode with functions.
🔢
Basic Calculator
Four-function, %, √, memory keys.