Calculators

Free online calculators for all your needs.

★ Popular

Grade Calculator Calculate what you need on your exam to to pass the course.	Percentage Calculator Calculate various percentages and convert ratios to percentages.
Weighted Average Calculator Calculate your weighted average course grade.	GPA Calculator Calculate your GPA using your letter grades or percentages.

School & Grades

Calculadora Nota Final Calcule o que você precisa em seu exame para passar o curso.	GPA Calculator Calculate your GPA using your letter grades or percentages.
Grade Calculator Calculate what you need on your exam to to pass the course.	Weighted Average Calculator Calculate your weighted average course grade.

Money & Finance

Impermanent Loss Calculator Work out impermanent loss in a liquidity pool and compare it with simply holding the assets.	Inflation Calculator Calculate a country's inflation rate within two different years.
Mortgage Calculator Monthly payment, affordability and amortization schedule for the US, Canada and UK, with extra payments.	VAT Calculator Add or remove VAT, GST and sales tax for 60+ countries, with itemised invoices grouped by rate.
YouTube Money Calculator Estimate YouTube earnings from views, or the views needed for an income goal.

Algebra & Calculus

2D Graphing Calculator Plot functions, equations, inequalities and polar curves with sliders, zeros and intersections.	3D Graphing Calculator Plot surfaces, spheres, curves and parametric surfaces in 3D, then rotate, zoom and colour them by height.
Calculator Multiplication, division, squares, roots, powers, fractions, factors and more, with a keypad and step-by-step panels.	CAS Calculator Solve equations, systems and inequalities with steps, every real root of hard equations, simplify, factor, limits and series.
Derivative Calculator Derivatives with every step explained: product, quotient and chain rules, higher, partial and implicit derivatives.	Integral Calculator Antiderivatives and definite integrals with steps: substitution, by parts, partial fractions, numeric values.
Sum of Integers Calculator Add 1 to n, any range, squares, cubes, odd or even numbers, multiples, arithmetic and geometric series, or your own formula.

Everyday Math & Health

BMI Calculator Calculate your BMI (Body Mass Index) using your height and weight.	Days Between Dates Calculator Days, weeks, months, hours and business days between two dates, with end-date inclusion and holidays.
Percentage Calculator Calculate various percentages and convert ratios to percentages.	Unit Conversion Calculator Convert feet to meters, mph to km/h, pounds to kilograms and many more units.

Physics & Science

Atomic Clock Simulator How far off is your clock? Work out drift per day or year from a frequency error, and see how atomic clocks compare.	Earth Curvature Calculator Enter a distance in kilometers or miles and see how much the Earth curves over it.
Michelson-Morley Experiment Simulator Turn an interferometer through an aether wind, watch the fringes shift, compare the 1881 and 1887 experiments and calculate the expected shift.	Photoelectric Effect Simulator Shine light on a metal and watch electrons escape. Find the stopping voltage and photon energy, and measure Planck's constant.
Reynolds Number Calculator Laminar or turbulent? Work out Re for any fluid, speed and size, plus pipe friction, drag and vortex shedding.

Fun

Gematria Calculator Ordinal and Sumerian gematria values for any word or phrase, with a downloadable spreadsheet.

Pokemon Go Calculator Calculate how many pokemon you need to transfer before using your lucky egg.

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