Online calculators · Page 13
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- Solar system scale calculatorScale a planet's diameter and mean distance from the Sun to your chosen model Earth size.
- Speaker and RF cable calculatorCalculate RF insertion loss and a separate resistive speaker-cable loss from your cable datasheet values.
- Speaker design calculatorEstimate sealed-box resonance and Q from driver parameters, or find the volume for a chosen target Q.
- Specific heat calculatorSpecific heat = heat transferred ÷ (mass × temperature change).
- Speed calculatorAverage speed = distance ÷ elapsed time.
- Speedometer error calculatorAdjust indicated speed by replacement circumference ÷ original circumference.
- Speedometer gear calculatorIdeal driven gear teeth = current teeth × indicated speed ÷ actual speed.
- Sphere calculatorSphere volume = 4πr³/3. Surface area = 4πr².
- Spring constant calculatorSpring constant = force magnitude ÷ extension magnitude.
- Square feet to cubic feet calculatorMultiply square footage by depth converted to feet to get cubic feet and cubic yards.
- Stair calculatorDivide total rise into equal risers and calculate the run for one fewer tread than risers.
- Standard error calculatorEstimate uncertainty in a sample mean.
- Statistics calculatorGet mean, median, mode, spread and quartiles from a list.
- Steps distance calculatorEstimate walking distance from your measured one-step length and step count.
- Steps to calories calculatorEstimate walking time from steps divided by measured cadence, then use the MET energy equation for that duration.
- Stock average calculatorCombine an existing holding with an additional purchase.
- Stock profit calculatorWork out a trade’s gain or loss after transaction fees.
- Stoichiometry calculatorCheck atom balance, find the limiting reactant from supplied masses and calculate theoretical product yields.
- Streaming bitrate calculatorSet a video bitrate budget by reserving part of your upload capacity, then subtracting audio and overhead.
- Study time calculatorDivide topic workload plus your review allowance across the study days you have available.
- Sum of squares calculatorCalculate Σx² and the centered sum Σ(x − mean)² for your list.
- Surface area calculatorFind the complete outside area of a box, sphere, right circular cylinder or cone.
- System of equations solverSolve two linear equations in x and y.
- T test calculatorCompare sample means with an independent-sample Welch t test or a paired t test.
- Tank volume calculatorCalculate liquid volume at a measured fill depth in a horizontal circular cylinder.
- Target heart rate calculatorEstimate the AHA target band from an age-predicted maximum heart rate of 220 minus age.
- Terminal velocity calculatorBalance weight against quadratic drag: terminal speed = √(2mg/(density × drag coefficient × area)).
- Theoretical yield calculatorConvert a known limiting-reactant amount to product using the balanced-equation coefficient ratio.
- Tile calculatorTiles = surface area ÷ coverage per tile × (1 + allowance ÷ 100), rounded up.
- Tip calculatorAdd a percentage tip to the bill, then divide the total equally.
- Tire size calculatorRead metric tire size as width, sidewall percentage and rim inches, then compare nominal outer diameters.
- Torque calculatorTorque = perpendicular force × lever arm.
- Total compensation calculatorAdd base pay, bonus, employer benefits and vested equity to compare annual compensation offers.
- Trapezoid area calculatorTrapezoid area = (first parallel side + second parallel side) × perpendicular height ÷ 2.
- Travel budget calculatorAdd daily spending, lodging nights and fixed travel costs, then apply your contingency allowance.
- Triangle area calculatorTriangle area = base × perpendicular height ÷ 2.
