Math & Numbers
Calculate the maximum bending (flexural) stress σ_max = M·c/I = M/Z at the outermost fiber of a beam section. Supports solid circle, rectangle, hollow tube, and I-beam; computes I, section modulus Z, and distance c automatically. Stress in MPa.
bending-stress-calculatorMath & Numbers
Calculate the basic rating life of a rolling bearing: L10 = (C/P)^p, with p = 3 for ball bearings and p = 10/3 for roller bearings. When a speed is provided, converts to L10h in operating hours.
bearing-life-l10Math & Numbers
Calculate the ratio, driven speed and belt linear speed of a belt drive. i = d₂/d₁ = n₁/n₂, belt speed v = π·d·n/60. Supports mm/cm/m/inch diameter units.
belt-pulley-speed-ratioFinance
Calculate your car loan monthly payment factoring in vehicle price, down payment, trade-in value, sales tax, and registration fees. Shows amount financed, total interest, total cost, a descending balance curve, and a yearly amortization schedule.
auto-loan-calculatorMath & Numbers
Convert numbers and text between any radix from 2 to 36, with custom alphabets and presets for Base58, Base62, and Crockford Base32.
base-n-radix-converterMath & Numbers
Convert bar to kilopascals with configurable decimal precision
bar-to-kpaMath & Numbers
Convert bar to pounds per square inch with configurable decimal precision
bar-to-psiMath & Numbers
Convert bits to gigabytes with decimal vs binary interpretation, alternate-system comparison, and network-speed-aware transfer estimates
bits-to-gbMath & Numbers
Convert bits to megabytes with decimal vs binary interpretation, alternate-system comparison, and network-speed-aware transfer estimates
bits-to-mbMath & Numbers
Convert bits to bytes with configurable decimal precision
bit-to-byteMath & Numbers
Calculate exact, cumulative, and upper-tail binomial probabilities for independent Bernoulli trials
binomial-distribution-calculatorMath & Numbers
Calculate posterior probability P(A given B) using prior, likelihood, and false-positive rate
bayes-theorem-calculator