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Home Multi Calculator Suite

Neon Calculator Suite by blue-idea.net

Basic, scientific, graphing, matrix, statistics, BMI, calorie, percentage & body fat calculators in one blue-red universe.

Basic Calculator
+ − × ÷
Performs simple arithmetic operations. Use responsibly.
Scientific Calculator
sin cos tan log
Uses radians for trigonometric functions. For complex or critical work, verify with trusted tools.
Graphing Calculator
y = f(x)
Simple 2D plotting. Expression uses JavaScript syntax (Math functions: Math.sin(x), etc.).
Matrix Calculator (2×2)
A, B, A±B, A·B, det(A)
2×2 operations only. Ensure inputs are valid numbers.
Statistics Calculator
mean median sd
Calculates count, mean, median, min, max, and sample standard deviation.
BMI Calculator
Body Mass Index
BMI is a rough indicator only and does not replace professional medical assessment.
Calorie Estimator
BMR & TDEE
Uses Mifflin–St Jeor equation for BMR and a simple activity multiplier. For health decisions, consult a professional.
Percentage Calculator
% tools
Quick percentage helpers for everyday calculations.
Body Fat Estimator
US Navy approx.
Approximate estimate only. For accurate assessment, speak with a qualified health professional.

Calculator Instructions Table

Calculator Purpose How to Use Notes
Basic Calculator Simple arithmetic (+ − × ÷) Click numbers and operators, then press "=". Supports decimals and chained operations.
Scientific Calculator Trigonometry, logs, powers, roots Type expressions like sin(0.5)+log(10) then press Evaluate. Uses radians; supports π, ln, log10, sqrt.
Graphing Calculator Plots y = f(x) on a 2D canvas Enter a JS-style function (e.g. x*x-2*x) and click Plot. Supports Math.sin(x), Math.cos(x), etc.
Matrix Calculator (2×2) Add, subtract, multiply, determinant Fill matrices A and B, then choose an operation. Only supports 2×2 matrices.
Statistics Calculator Mean, median, SD, min, max Enter numbers separated by commas or spaces. Ignores invalid entries automatically.
BMI Calculator Body Mass Index estimate Enter height (cm) and weight (kg), click Calculate. General indicator only; not a medical evaluation.
Calorie Estimator BMR + daily calorie needs Enter age, sex, height, weight, activity level. Uses Mifflin–St Jeor formula.
Percentage Calculator Percentage of / percentage is Fill the fields and click Compute. Supports both directions of % calculation.
Body Fat Estimator US Navy approximation Enter height, neck, waist, and hip (female). Approximate only; consult professionals for accuracy.