General Math
Fractions, percentages, exponents, logarithms, and number operations.
Showing 29 tools
General Math
Big Number Calculator
Calculate result of arithmetic operation from Two large numbers, Operation, with the key formulas and caveats needed to interpret the result correctly.
Binary Calculator
Calculate number converted to binary, hex, or octal from Decimal number, Target base, with the key formulas and caveats needed to interpret the result correctly.
Conversion Calculator
Convert common length measurements or temperatures and keep the unit relationship visible instead of treating every conversion as interchangeable.
Density Calculator
Calculate third quantity from Two of: density, mass, volume, with the key formulas and caveats needed to interpret the result correctly.
Exponent Calculator
Calculate base raised to the exponent power from Base, Exponent, with the key formulas and caveats needed to interpret the result correctly.
Factor Calculator
Calculate all factors and prime factorization from Integer, with the key formulas and caveats needed to interpret the result correctly.
Fraction Calculator
Calculate simplified fraction and decimal equivalent from Numerator 1, Denominator 1, Operation, Numerator 2, Denominator 2, with the key formulas and caveats needed to interpret the result correctly.
GDP Calculator
Calculate gdp and gdp per capita from Consumption, Investment, Government spending, Exports, Imports, with the key formulas and caveats needed to interpret the result correctly.
Greatest Common Factor Calculator
Calculate gcf value from Two or more integers, with the key formulas and caveats needed to interpret the result correctly.
Half-Life Calculator
Calculate remaining quantity from Initial quantity, Half-life, Time elapsed, with the key formulas and caveats needed to interpret the result correctly.
Hex Calculator
Calculate value in all number bases from Number, Input base, with the key formulas and caveats needed to interpret the result correctly.
Least Common Multiple Calculator
Calculate lcm value from Two or more integers, with the key formulas and caveats needed to interpret the result correctly.
Log Calculator
Calculate logarithm value from Number, Base, with the key formulas and caveats needed to interpret the result correctly.
Mass Calculator
Calculate converted mass from Mass value, From unit, To unit, with the key formulas and caveats needed to interpret the result correctly.
Matrix Calculator
Calculate determinant, inverse, and operations from 2×2 matrix entries, with the key formulas and caveats needed to interpret the result correctly.
Molarity Calculator
Calculate molarity in mol/l from Moles of solute, Volume of solution, with the key formulas and caveats needed to interpret the result correctly.
Molecular Weight Calculator
Calculate molecular weight in g/mol from Compound selection, with the key formulas and caveats needed to interpret the result correctly.
Percent Error Calculator
Enter measured and theoretical values to see the absolute difference, signed difference, and percent error behind the comparison.
Percentage Calculator
Three percentage calculations in one place: find X% of a number, determine what percentage A is of B, or calculate the percentage change from one value to another. Each mode shows the formula and result with worked examples.
Quadratic Formula Calculator
Enter coefficients a, b, and c to calculate real or complex roots, the discriminant, and the parabola vertex.
Random Number Generator
Choose a minimum, maximum, and count to generate fresh random integers for games, sampling, or simple simulations.
Ratio Calculator
Enter two ratio parts and a comparison value to simplify the ratio, read equivalent forms, and solve the missing side of a proportion.
Roman Numeral Converter
Enter an integer from 1 to 3999 to convert it into Roman numerals using the standard additive and subtractive symbols.
Root Calculator
Enter a number and root degree to calculate the nth root, inspect common roots, and verify when a negative input leads to an imaginary result.
Rounding Calculator
Enter a number and decimal-place setting to compare the main rounded result with truncation, ceiling, and floor behavior.
Scientific Calculator
Run common scientific math operations in one place: square root, square, cube, log base 10, natural log, sine, cosine, tangent, and absolute value. Trigonometric inputs are interpreted in degrees.
Scientific Notation Calculator
Enter a number to rewrite it as a coefficient times a power of ten and compare the standard and e-notation forms.
Speed Calculator
Choose the unknown value, enter the other two, and calculate speed, distance, or travel time with the matching unit conversions.
Weight Calculator
Enter one weight and unit to compare kilograms, pounds, stones-plus-pounds, and grams without manual conversion.
