Exposure Value (EV) & Lux
Convert EV to shutter/aperture pairs, translate to lux, and check lighting environment standards.
Overcast day, open shade outdoors
Explore Additional Utilities
Wax yield — honey weight ↔ beeswax produced
Calculate estimated beeswax yields as a function of harvested honey comb or calculate honey consumption needed to build wax.
Line length ↔ kite steering response — pivot arc
Analyze steering response lag and turning pivot arc diameter based on line length.
Pediatric Dosing Calculator
Estimate pediatric dosages from adult recommendations using standard pediatric clinical rules: Clark's, Young's, Webster's, Fried's, and BSA methods.
Wind Turbine Power Generator
Estimate power output (watts) of a wind turbine based on wind speed, rotor diameter, blade sweep area, and aerodynamic power coefficients.
Horse Height (Hands ↔ cm ↔ inches)
Convert equestrian height from traditional hands (hh, where 1 hand = 4 inches) to centimeters and inches, with pony/horse classification.
Octave Band Converter
Calculate center frequencies, upper/lower band limits, and bandwidths for fractional octave bands (1/1, 1/3 octaves).
Knitting Gauge Converter
Convert knitting and crochet stitches and rows count between centimeters and inches.
Muzzle velocity — fps ↔ m/s ↔ km/h
Convert velocities between fps, m/s, and km/h. Calculate muzzle kinetic energy in Joules and Foot-Pounds.
Drug & Supplement Dosage Converter
Convert supplement and drug dosing between milligrams (mg), micrograms (mcg), and International Units (IU) for vitamins A, C, D, and E.
Gray ↔ rad (Absorbed Dose)
Convert between Gray (Gy), rad, milligray (mGy), and microrad (µrad) to analyze absorbed ionizing radiation energy per unit mass.
Head Pressure Converter
Convert between hydrostatic head pressure (meters or feet of water) and fluid pressures like bar, PSI, Pascals, and atmospheres.
Soil Bearing Capacity Converter
Convert soil bearing capacities between Kilopascals (kPa), Tons per Square Foot (tsf), Pounds per Square Foot (psf), and kg/cm² with typical soil range guides.
U-value ↔ thermal performance — double vs triple glazing
Analyze thermal conductivity (U-values and R-values) for energy-efficient glazing window performance.
Earthquake Magnitude (Richter ↔ Moment)
Convert and compare earthquake energy release, shaking amplitude, and felt effects between Richter (ML) and Moment Magnitude (Mw) scales.
Stocking density — fish size ↔ liters per kg
Calculate stocking density (kg/m³ or L/kg), total biomass, and maximum safe fish count based on tank volume and average fish weight.
Drug Half-Life & Scheduling
Model drug half-life elimination, dosing accumulation ratios, times to steady-state, and clearance curves with interactive charts.
Translation Pages & Pricing Converter
Convert document page count to word and character counts, and calculate translation pricing for multiple languages and target audiences.
Saponification value — oil type ↔ lye required per gram
Look up sap values for standard oils and calculate custom lye weights.
Ballistic coefficient ↔ drag — projectile performance
Calculate bullet Sectional Density (SD) and Ballistic Coefficient (BC) using projectile weight, caliber, and form factor.
Stellar Magnitude Converter
Calculate apparent vs. absolute magnitudes of stars and estimate their physical distance.