Maths & geometry
Fractions, ratios, GCF, quadratics, area, volume, triangles.
12 tools · nothing uploaded
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- Area CalculatorArea, perimeter and diagonal of a rectangle.
- Circle CalculatorArea, circumference and diameter from a radius.
- PopularFraction CalculatorAdd, subtract, multiply and divide fractions.
- GCF & LCM CalculatorGreatest common factor and lowest common multiple.
- PopularPythagorean Theorem CalculatorFind any side of a right triangle.
- PopularQuadratic Equation SolverRoots of ax² + bx + c = 0.
- Ratio CalculatorSolve A:B = C:D for any missing value.
- PopularScientific CalculatorA full scientific calculator you can type whole expressions into.
- Slope CalculatorSlope, equation and distance between two points.
- PopularTime Duration CalculatorHours worked between two times.
- PopularTriangle CalculatorArea, perimeter and every angle from three sides.
- Volume CalculatorVolume and surface area of a cylinder.
More in Calculators
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- Everyday money Tips, bill splitting, discounts, fuel and electricity costs.
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- Percentages Increase, decrease, change, difference and reverse percentages.
- Statistics & probability A/B tests, sample size, confidence intervals, z-scores, outliers.
- Health & fitness BMI, BMR, body fat, macros, water intake and running pace.
- Medical & clinical Dosage, IV drip rate, eGFR, BSA, heart rate zones, due dates.
- Physics & chemistry Molarity, pH, gas laws, half-life, projectiles and momentum.
- Electrical & engineering Ohm's law, resistors, voltage drop, wire size, torque and force.
- Building & home Paint, tile, concrete and brick quantities for a real job.
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- Vehicle & travel Mileage, trip and EV charging cost, depreciation, tyre size.
- Print & paper Paper sizes, DPI, print cost, booklets and dimensional weight.
- Kitchen and baking Cups to grams by ingredient, oven temperatures and recipe scaling.
- Garden and groundwork Turf, gravel, mulch and topsoil by volume and by bag.
- Number theory Primes, factorials and Fibonacci, computed exactly rather than rounded.
- Timers Interval, Tabata and round timers, with no pointless rest at the end.