NeutronDB provides 7 free data analysis calculators that you can use directly in your browser — no login, no app download, no cost. Each tool is built with accurate, formula-driven logic and instant results so you can get answers in seconds.

All calculators tagged data analysis are optimised for both desktop and mobile, and include step-by-step explanations, worked examples, and FAQs to help you understand the numbers - not just the answer.

Calculators in This Collection

Cubic Regression Calculator - Fit a cubic polynomial to your data using least squares. Get coefficients a, b, c, d, R-squared, equation, and predicted values instantly. Free.
Descriptive Statistics Calculator - Calculate 25+ descriptive statistics: mean, median, mode, standard deviation, variance, quartiles, IQR, skewness, kurtosis, and more. Free online.
Exponential Regression Calculator - Fit an exponential curve y = ae^(bx) to your data using log-linearisation. Get coefficients, R-squared, equation, and predicted values instantly.
Linear Regression Calculator - Calculate linear regression equation (y = mx + b), slope, intercept, R-squared, correlation coefficient, and residuals from your data. Free online.
Mean Median Mode Calculator - Calculate mean, median, mode, range, variance, and standard deviation from any dataset. Paste your numbers and get full statistics instantly. Free.
Polynomial Regression Calculator - Fit a polynomial of any degree from 1 to 6 using least squares. Get all coefficients, R-squared, equation, and predicted values from your data. Free.
Quadratic Regression Calculator - Fit a quadratic curve to your data using least squares. Get coefficients a, b, c, R-squared, vertex, and predicted values instantly. Free online.

How to Use These Calculators

Every calculator on NeutronDB follows a consistent three-step pattern:

Enter your values - fill in the input fields. Each field has a label and a sensible default so you can start immediately.
Click Calculate - results appear instantly without a page reload. No waiting.
Read the breakdown - results are accompanied by a formula explanation and a worked example so you can verify the logic yourself.

All tools run entirely in your browser. Your data is never sent to a server, ensuring complete privacy.

Why Use NeutronDB?

NeutronDB is a free, no-signup calculator platform covering finance, math, health, science, engineering, and everyday use. Every calculator is hand-built with verified formulas - not generated approximations - and cross-checked against standard references.

Unlike generic formula pages, each NeutronDB calculator is interactive: enter real numbers and see real results instantly. The formulas and worked examples alongside each tool mean you understand why the answer is what it is.