Categories
Every tool in the catalogue, by field and by family.
Browse by field
11 fields
- Mathematics26Algebra, geometry, trigonometry, sequences, combinatorics and inferential statistics.
- Physics28Mechanics, thermodynamics, waves, optics and microscopy, celestial mechanics, exoplanets and radioactivity.
- Chemistry15Stoichiometry, solutions and dilutions, acid-base equilibria, osmolarity and spectrophotometry.
- Biology12Molecular biology, genetics, microbiology and cell culture.
- Computer science4Data rates, storage units, network addressing and transfer times.
- Units & conversions17Pressure, energy, force, flow, viscosity, dose and radioactivity: conversions between systems.
- Engineering13Electronics and circuits, microfluidics, fluid mechanics and ideal gases.
- Measurement & quality3Metrology, uncertainty propagation, significant figures and calibration.
- Microfabrication3Photolithography, cleanroom processes, MEMS, micromachining and microfluidic device fabrication.
- Laboratory & processes2Centrifugation, compressed gas and bench safety.
- Studies & exams3Averages, target grades, grading scales: the calculations of student life.
Every tool, by field and by family
126 tools
Mathematics
26 tools
Applied statistics
- Binomial and Poisson distributions
- Chi-square test calculator, goodness of fit and independence
- Confidence interval calculator
- Correlation and linear regression calculator
- Descriptive statistics, mean, median, standard deviation
- Normal distribution calculator
- One-way ANOVA calculator, comparing multiple means
- Student's t-test calculator, comparison of means
Applied mathematics
- Area and volume calculator for common shapes
- Arithmetic and geometric sequence calculator
- Combinations and permutations calculator (nCr, nPr, n!)
- Cross multiplication calculator (rule of three)
- Doubling time and compound growth
- Equation of a line calculator
- GCD and LCM
- Intercept theorem (Thales)
- Linear interpolation calculator
- Logarithms and exponentials
- Map and plan scale
- Matrix calculator, 2×2 and 3×3: determinant, inverse, system
- Percentage and percentage change calculator
- Pythagorean theorem
- Quadratic equation solver with steps
- Slope: percent, degrees, ratio
- Triangle solver (law of sines and cosines)
- Vector calculator, dot product, cross product and angle
Physics
28 tools
Optics, photonics & microscopy
Radiation protection & nuclear physics
General physics
- Buoyancy calculator, Archimedes’ principle
- Calorimetry calculator
- Coulomb’s law and electric field calculator
- Doppler effect calculator (sound)
- Free fall and projectile motion calculator
- Gravitation and circular orbit calculator
- Hooke’s law calculator (F = kx)
- Hydrostatic pressure
- Inclined plane and friction calculator
- Kinetic and potential energy, conversion by falling
- Momentum and collision calculator
- Simple pendulum and mass-spring oscillator calculator
- Speed, distance, time
- Waves: frequency and wavelength
- Work and power
Space & astrophysics
Chemistry
15 tools
Solutions & bench work
- Dilution calculator, C1V1 = C2V2
- Mass ↔ amount of substance conversion
- Mass/volume percentage calculator (% w/v)
- Mixing two solutions
- Molarity calculator (C = n / V)
- Osmolarity calculator
- Serial dilution calculator
- Solution preparation calculator (m = C × V × M)
- Solution quantities solver (n, V, c, cₘ, m, M)
Analytical & separation chemistry
General chemistry
Computer science
4 tools
Units & conversions
17 tools
- Bar to psi conversion
- Decibel converter
- Degrees to radians conversion
- Density converter
- Electrical unit converter
- Energy converter
- Force converter
- Power converter
- ppm ↔ mg/m³ ↔ mg/L converter
- Pressure converter
- Radioactivity and dose converter
- Temperature converter
- Torque converter
- Universal unit converter
- UV dose and irradiance converter
- Viscosity converter
- Volumetric flow rate converter