Tính toán thông minh hơn mỗi ngày
Máy tính trực tuyến miễn phí cho toán học, tài chính, sức khỏe, khoa học và nhiều hơn nữa.
Tính toán nhanh
Kết quả trực tiếpDuyệt theo danh mục
Toán học
Fractions, algebra, geometry, statistics and more. Instant result with formula, examples and step-by-step calculation. Free online calculator.
414+ máy tính
Tài chính
Loans, interest, investing, taxes and business tools. Instant result with formula, examples and step-by-step calculation. Free online calculator.
627+ máy tính
Thực tế
Time, health, construction, science and everyday tools. Instant result with formula, examples and step-by-step calculation. Free online calculator.
1103+ máy tính
Chuyển đổi
Unit, area, length, temperature and all conversions. Instant result with formula, examples and step-by-step calculation. Free online calculator.
247+ máy tính
Chuyên biệt
Advanced calculators for finance, technology, agriculture, and more. Instant result with formula, examples and step-by-step calculation. Free online calculator.
316+ máy tính
Máy tính phổ biến
Xem tất cảBasic Calculator
Standard arithmetic operations. Instant result with formula, examples and step-by-step calculation. Free online calculator.
Percentage Calculator
Calculate percentages, increases and decreases. Quick calculation with worked example and formula. Free everyday calculator.
Quadratic Formula
Solve ax² + bx + c = 0 equations. See formula, step-by-step solution and all rearrangements. Instant math solver.
Tip Calculator
Calculate tips and split bills. Quick calculation with worked example and formula. Free everyday calculator.
Discount Calculator
Calculate discounts and sale prices. Quick calculation with worked example and formula. Free everyday calculator.
Mean Median Mode
Calculate central tendency measures. Step-by-step solution with formula, example dataset and interpretation guide.
Test Grade Calculator
Convert correct answers to percentage and letter grade. Fast and accurate result with formula, step-by-step method and unit overview. Free tool.
Random Number Generator
Generate random numbers in any range. Instant result with formula, examples and step-by-step calculation. Free online calculator.
Grade Calculator
Calculate class grades and GPA. Instant result with formula, worked example and step-by-step solution. No signup required.
Matrix 2×2 Calculator
Determinant, inverse, addition and multiplication of 2×2 matrices. See formula, step-by-step solution and all rearrangements. Instant math solver.
Pythagorean Theorem
Find sides of right triangles. Instant result with formula, worked example and step-by-step solution. No signup required.
Trig Functions Calculator
Calculate sin, cos, tan and more. Instant result with formula, worked example and step-by-step solution. No signup required.
Tất cả máy tính
Từ Blog
Binomial Probability Calculator Guide
Calculate the probability of exactly k successes in n trials using the binomial distribution, essential for quality control and statistical testing.
Normal Distribution Calculator: Bell Curve Probabilities
Use the normal distribution to find probabilities and understand the foundation of statistical inference and hypothesis testing.
Confidence Interval Calculator for the Mean
Calculate confidence intervals for population means from sample data, quantifying the uncertainty in your estimates.
Z-Score Calculator: Standardize and Find Probabilities
Convert raw scores to z-scores to find probabilities and compare values from different normal distributions.
Cubic Equation Solver: Find All Real and Complex Roots
Solve cubic equations (degree 3 polynomials) using Cardano's formula and numerical methods.
Sharpe Ratio Calculator: Risk-Adjusted Investment Returns
Calculate the Sharpe ratio to compare risk-adjusted returns across investments and identify which offers better value.