From basic arithmetic to advanced financial, scientific, health, and statistical calculators — instant, accurate results.
83 tools
Calculate your weighted final grade from multiple assignments, tests, and projects. Enter grades and weights to get your...
Open toolCalculate your semester and cumulative GPA on a 4.0 scale. Add courses with credit hours and letter grades to see your G...
Open toolFind out exactly what grade you need on your final exam to achieve your desired course grade. Enter current grade, final...
Open toolCalculate your Comprehensive Ranking System (CRS) score for Canada Express Entry. Enter age, education, language scores,...
Open toolCalculate your body fat percentage using the US Navy method and BMI method. Enter height, weight, and body measurements...
Open toolCalculate crop values, earnings, and profits in the Roblox game Grow a Garden. Enter your crops, mutations, and quantiti...
Open toolCan't decide who to start in fantasy football? Compare two players side by side using projected points, matchup difficul...
Open toolCalculate the tip, total, and per-person split for any bill in seconds.
Open toolReconstitute peptides and calculate the exact dose to draw on an insulin syringe.
Open toolPredict a child's future adult height from parents' heights.
Open toolCalculate your ideal daily protein intake based on weight, activity, and goals.
Open toolEstimate creatinine clearance with the Cockcroft-Gault equation.
Open toolFind how much water you should drink each day.
Open toolFind your fat-free mass index (FFMI) and muscularity.
Open toolFind your body shape from your bust, waist, and hip measurements.
Open toolConvert between FPS and frame time, and count frames.
Open toolEstimate your retirement corpus and monthly pension.
Open toolPredict the CP your Pokémon will have after it evolves.
Open toolA full-featured online scientific calculator with trig, logs, exponents, memory, and more.
Open toolEstimate your 10-year atherosclerotic cardiovascular disease risk.
Open toolEstimate your college admission chances from GPA, scores, and acceptance rate.
Open toolCompute the curl of a 3D vector field at a point.
Open toolFind the curvature and radius of curvature of a curve at a point.
Open toolFind how a function behaves as x approaches positive and negative infinity.
Open toolCalculate the fractional excretion of sodium (FENa) for AKI workup.
Open toolEstimate your golf Handicap Index from your scores, rating, and slope.
Open toolEstimate your due date and gestational age from your last menstrual period.
Open toolEstimate maintenance IV fluid rate by weight using the 4-2-1 rule.
Open toolFind the time when Earth's twilight matches the dim daylight on Pluto.
Open toolCalculate how many plywood sheets you need to cover an area.
Open toolSplit an amount proportionally by share, days, or usage.
Open toolSolve the ideal gas law PV=nRT for any unknown variable.
Open toolCalculate the rebar bars and total length needed for a slab grid.
Open toolGenerate sequence terms from a recursive formula and a starting value.
Open toolCheck your Sade Sati period and phase based on your moon sign.
Open toolSolve right triangles with sine, cosine, and tangent ratios.
Open toolCalculate outcomes and odds for a 10-skin trade-up contract.
Open toolEstimate your weekly unemployment benefit from recent earnings.
Open toolFind your VDOT and training paces from a recent race time.
Open toolCompute the Wronskian to test linear independence of functions.
Open toolCompute the bitwise XOR of two numbers in decimal, binary, or hex.
Open toolFind your correct band and cup size from your measurements.
Open toolConvert ACT raw section scores into your composite score.
Open toolEstimate your AP Statistics score (1–5) from MCQ and FRQ performance.
Open toolSee your savings and payoff time from a balance transfer.
Open toolEstimate your biological age from lifestyle factors.
Open toolTally a ten-pin bowling game with correct strike and spare bonuses.
Open toolCalculate the profit, loss, and breakeven of a call option.
Open toolCalculate cubic meters (CBM) and volumetric weight for shipping.
Open toolFind the length of a circle's chord from radius and angle.
Open toolCalculate the coefficient of variation (CV) of a data set.
Open toolFind new coordinates after dilating a point about a center.
Open toolEstimate the toxicity risk if your dog ate chocolate.
Open toolConvert your dog's age into human years more accurately.
Open toolFind engine displacement from bore, stroke, and cylinders.
Open toolPlan your intermittent fasting and eating windows.
Open toolFind velocity, time, and distance for an object in free fall.
Open toolScore the Glasgow Coma Scale to assess level of consciousness.
Open toolEstimate the daily steps needed to reach your weight loss goal.
Open toolFind how much insulation you need to reach a target R-value.
Open toolEstimate a mealtime insulin dose from carbs and correction.
Open toolFind the z-score or value for a given probability (inverse normal).
Open toolCompute the natural logarithm (ln) of any positive number.
Open toolConvert a dose in milligrams to milliliters using concentration.
Open toolFind the moment of inertia for common shapes and point masses.
Open toolEvaluate a piecewise-defined function at any input value.
Open toolConvert between polar (r, θ) and Cartesian (x, y) coordinates.
Open toolApproximate a definite integral using Simpson's rule.
Open toolEstimate your monthly Social Security retirement benefit.
Open toolFind the weight of steel bars, plates, tubes, and sheets.
Open toolCalculate the tension of a vibrating string from frequency and mass.
Open toolSolve a system of equations by the substitution method.
Open toolFind how time slows at high speeds using special relativity.
Open toolEstimate trip duration from distance and average speed.
Open toolCalculate GD&T true position from X and Y deviations.
Open toolFind roof truss rise, rafter length, and angles from span and pitch.
Open toolFind the vertex of a parabola from a quadratic equation.
Open toolCompute the weighted average cost of capital (WACC).
Open toolCalculate your waist-to-height ratio to assess health risk.
Open toolConvert watts to amps using voltage for DC and AC circuits.
Open toolFind the slope-intercept equation y = mx + b of a line.
Open toolAdd or remove GST from any amount at any rate.
Open toolProject SIP returns when you increase your contribution each year.
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