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Math & Science Tools

Math & Science collects browser-based calculators and generators for arithmetic, number theory, base conversion, matrix algebra, and sequence generation, built for students, teachers, developers, and data analysts who need a quick answer before moving on. A high-school tutor prepping Monday’s worksheet on primes and factorials can list the first 50 primes, compute 15!, and verify GCDs in under two minutes.

All tools in this category

Age Calculator - Years, Months and Days

Free age calculator. Find your exact age in years, months and days from your date of…

Calculate Factorial

Calculate Factorial up to n=5,000 with exact BigInt arithmetic. Free, offline, client-side - includes digit count…

Date Difference Calculator - Days Between

Free date difference calculator. Find the time between two dates in years, months and days, plus…

Discount Calculator - Sale Price and Savings

Free discount calculator. Enter a price and percent off to get the sale price and how…

Find All Divisors

Find every divisor of any integer up to 1 billion - divisor count, sum, prime/perfect/abundant detection.…

Fraction Calculator - Add, Subtract, Multiply

Free fraction calculator. Add, subtract, multiply or divide two fractions and get a simplified result, decimal…

Generate the Thue-Morse Sequence

Generate the Thue-Morse sequence, where each term is the parity of the ones in its position.

GPA Calculator - Weighted Grade Point Average

Free GPA calculator. Add your courses with grades and credit hours to get your weighted GPA…

Hours Calculator - Time Between Two Times

Free hours calculator. Enter a start and end time to get hours worked, with break deduction…

Margin and Markup Calculator - Profit Percent

Free margin and markup calculator. Enter cost and selling price to get profit, gross margin percent…

Matrix Addition Calculator

Add two matrices of the same size, element by element, in your browser.

Matrix Multiplication Calculator

Multiply two matrices, where the columns of A must equal the rows of B.

Matrix Subtraction Calculator

Subtract one matrix from another of the same size, element by element.

Pace Calculator - Running Pace and Splits

Free running pace calculator. Enter distance and finish time to get pace per km and mile,…

Percentage Calculator - Percent and Change

Calculate percentages: X% of Y, X is what % of Y, % change. Free tool.

Ratio Calculator - Simplify and Solve Ratios

Free ratio calculator. Simplify a ratio, or solve a proportion by leaving one value blank. See…

ROI Calculator - Return on Investment Percent

Free ROI calculator. Enter amount invested and amount returned to get net profit, ROI percent and…

Scientific Calculator - Trig, Logs, Powers

Free scientific calculator. Trig, logarithms, powers, roots, factorials, pi and e, with degrees or radians. Works…

Statistics Calculator - Mean, Median, Mode, SD

Free statistics calculator. Paste your numbers to get mean, median, mode, range, variance and standard deviation,…

Tip Calculator - Split the Bill

Free tip calculator. Work out the tip and total for any bill, split it between people,…