Math & Numbers
Convert Celsius to Kelvin with configurable decimal precision
celsius-to-kelvinMath & Numbers
Convert centimeters to millimeters with configurable decimal precision
cm-to-mmMath & Numbers
Run chi-square goodness-of-fit or independence tests from observed counts or contingency tables
chi-square-test-calculatorMath & Numbers
Calculate chi-square distribution PDF, CDF, and right-tail probability from a statistic and degrees of freedom
chi-square-distribution-calculatorMath & Numbers
Calculate coefficient of variation as relative standard deviation for comparing variability across datasets
coefficient-of-variation-calculatorMath & Numbers
Convert Celsius to Fahrenheit with configurable decimal precision
celsius-to-fahrenheitMath & Numbers
Convert centimeters to inches with configurable decimal precision
cm-to-inchesMath & Numbers
Automatically balance chemical equations using linear algebra methods
chemical-equation-balancerFinance
Convert odds between decimal, fractional, and American formats with implied probability, plus parlay combination odds and no-vig fair-odds calculation.
betting-odds-calculatorMath & Numbers
Solve the Bernoulli equation p/(ρg) + v²/(2g) + z = const for steady, ideal, incompressible flow between two points on a streamline. Supply all three upstream quantities (p₁, v₁, z₁) and any two of the three downstream quantities; the tool solves for the third. Solve velocity: v₂ = √[v₁² + 2(p₁-p₂)/ρ + 2g(z₁-z₂)] — a negative radicand is physically impossible and is rejected. Solve pressure: p₂ = p₁ + ½ρ(v₁²-v₂²) + ρg(z₁-z₂). Solve elevation: z₂ = z₁ + (p₁-p₂)/(ρg) + (v₁²-v₂²)/(2g). g = 9.81 m/s². Density in kg/m³/g/cm³, pressure in Pa/kPa/bar/atm/psi, velocity in m/s, elevation in m/cm/ft. The upstream pressure/velocity/elevation heads and the total head are also reported.
bernoulli-equation-solverMath & Numbers
Calculate support reactions of a simply supported beam via static equilibrium. UDL: RA=RB=q·L/2. Center point load: RA=RB=P/2. Off-center point load at a: RA=P·b/L, RB=P·a/L. Also returns max shear Vmax and max moment Mmax.
beam-reaction-forceMath & Numbers
Calculate the Terzaghi ultimate bearing capacity of a shallow foundation: q_ult = c·Nc·sc + q·Nq·sq + 0.5·γ·B·Nγ·sγ. Computes Nc/Nq/Nγ and shape factors automatically; supports strip, square, and circular footings. Result in kPa.
bearing-capacity-calculator