Math Calculators
Solve percentages, changes, formulas, and quick everyday math problems. Use simple, modern calculators designed for fast answers, clear results, and mobile-friendly browsing.
Available tools
Math calculator list
Choose a tool below. Live tools are ready to use, while planned tools are part of the next build list.
Percentage Calculator
Find percentages, percent change, increases, decreases, and reverse percentages.
Percentage Increase Calculator
Calculate percentage increase, add a percent increase, reverse an increased value, and view formula steps.
Percentage Decrease Calculator
Calculate percent decrease, reduced value, original value, discount savings, and step-by-step formulas.
GPA Calculator
Calculate your semester GPA or cumulative GPA instantly. Supports 4.0, 5.0 (weighted), and 10-point scales with letter grades.
Decimal to Binary Converter
Convert decimal numbers to binary instantly with step-by-step division by 2, examples, copy button, and binary place value explanation.
Decimal to Fraction Calculator
Convert decimals to simplified fractions, mixed numbers, improper fractions, and repeating decimal fractions with step-by-step work.
Slope Percentage Calculator
Calculate slope percentage, angle, ratio, decimal slope, rise, run, and slope length from rise and run, two points, grade percent, or angle with a simple visual chart.
Pythagorean Theorem Calculator
Find the missing side of a right triangle using the Pythagorean theorem with area, perimeter, angles, altitude, step-by-step work, and a simple visual triangle.
Circumference Calculator
Calculate circle circumference from radius, diameter, area, or reverse-calculate with step-by-step formula, live visual circle, unit converter, and copy/share buttons.
Exponent Calculator
Calculate powers, negative exponents, fractional exponents, powers of e, scientific notation, step-by-step exponent work, and visual power growth chart.
Significant Figures Calculator – Sig Fig
Count significant figures, round numbers to sig figs, highlight significant digits, and view decimal, scientific notation, E notation, rules, examples, and step-by-step explanation.
Square Root Calculator
Calculate square roots, cube roots, and nth roots instantly with simplified radical form, step-by-step solutions, prime factorization, perfect square check, visual chart, copy result, and share buttons.
Number Base Converter Free
Convert binary, decimal, octal, hex, and bases 2–36 with steps, bit analysis, and multi-base results.
Area Calculator
Calculate area of 10 shapes — rectangle, circle, triangle, sector, annulus & more. Live SVG preview, dual units, perimeter, and material estimator.
Arithmetic Sequence Calculator
Calculate the nth term, partial sum, common difference, or first term of any arithmetic sequence with step-by-step solution, term list, and visual chart.
Pascal's Triangle Calculator
Generate Pascal's triangle, find C(n,k), expand binomials, and explore patterns with step-by-step solutions.
Fibonacci Calculator
Calculate Fibonacci numbers, nth terms, sequences, sums, ratios, custom starts, and visual charts with instant step-by-step results.
TI-84 Calculator Online
Use a TI-84-style online calculator for expressions, graphing, tables, quadratics, copy results, and student math practice.
991ES Calculator Online
Use a 991ES calculator online for scientific math, powers, roots, trigonometry, logs, graphs, and calculation history.
XOR Calculator Multiple Inputs
Calculate XOR for multiple binary, decimal, and hexadecimal inputs with step-by-step visualization, truth tables, PDF export, and educational examples.
LSAT Score Calculator
Estimate LSAT scaled score from raw score, wrong answers, section performance, curve type, and target score planning.
Terminus Calculator
Solve the Terminus map math puzzle in Black Ops 6 Zombies. Select X, Y, Z symbol values to instantly get your 3-digit Beamsmasher code. Save 5,000 Essence.
About this category
Why use CalcMora math calculators?
CalcMora tools are designed to be quick and easy for everyday users. Each calculator focuses on clear inputs, instant results, mobile-friendly cards, and helpful descriptions so you understand the answer, not just the number.
Questions
Math calculators FAQ
Are these math calculators free?
Yes. CalcMora calculators are free to use and built for fast, simple estimates.
Can I use these calculators on mobile?
Yes. Category pages and calculator pages are designed to work well on phones, tablets, and desktop screens.
Are the results professional advice?
No. The calculators are for general information and quick estimates. For important financial, medical, legal, or technical decisions, check with a qualified professional.