Geotechnical & Soil Lab
Convert soil bearing capacities, calculate loose-compacted volumes, model groundwater hydraulic flow with Darcy\'s Law, interpret Atterberg limits, and run USCS sieve classifications.
Plasticity Index
Analyze Liquid Limit and Plastic Limit to find Plasticity Index. Visualize soil state on Casagrande's plasticity chart.
CL - Inorganic Lean Clay (Low to Medium Plasticity)
The A-Line separates clays from silts. The U-Line is the natural maximum boundary.
Explore Additional Utilities
Tire size decoder — 205/55R16 ↔ diameter ↔ width ↔ aspect
Decode metric tire specs to calculate sidewall height, total diameter, circumference, and compare speedometer error against a secondary size.
Text Case Converter
Swiftly switch text between UPPERCASE, lowercase, camelCase, snake_case, or Title Case.
Base64 Encoder
Encode textual strings to Base64 format, or decode Base64 back to raw text.
Concrete strength — MPa ↔ psi ↔ N/mm²
Convert concrete compressive strength between MPa, psi, and N/mm². View typical application guidelines and concrete classes.
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.
Coverage rate — chemical amount ↔ area treated
Determine total chemical volume or weight required based on the target area, sprayer output flow, and speed.
Soil Permeability Converter
Convert coefficient of permeability (hydraulic conductivity) between cm/s, m/day, ft/day, and m/s with soil type drainage classifications.
Sidereal Time Converter
Convert between standard Solar Time and Sidereal Time based on your longitude.
Viscosity Converter
Convert dynamic and kinematic viscosity between centipoise (cP), centistoke (cSt), Saybolt Universal Seconds (SSU), Pa·s, and m²/s.
Melt point — wax type ↔ degrees Celsius ↔ Fahrenheit
Analyze melt points, fragrance addition temperatures, and pour temperatures for different waxes.
Drug Half-Life & Scheduling
Model drug half-life elimination, dosing accumulation ratios, times to steady-state, and clearance curves with interactive charts.
Octave Band Converter
Calculate center frequencies, upper/lower band limits, and bandwidths for fractional octave bands (1/1, 1/3 octaves).
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.
Scale factor (model size ↔ real world)
Convert dimensions between model design sizes and physical real-world scale targets, including imperial/metric conversions.
Carat weight ↔ grams
Convert between diamond or gemstone carats, metric grams, grains, and points of gem weight.
Precipitation Unit Converter
Convert rainfall and precipitation depth between millimeters, inches, and liters per square meter.
Swimming Pace & Yardage Converter
Convert swim splits and paces between per-100m, per-100 yards, and overall distances with custom pool sizes.
Troy ounce ↔ gram ↔ pennyweight
Convert weights of precious metals like gold, silver, and platinum between Troy ounces, grams, and pennyweight (dwt).
Gray ↔ rad (Absorbed Dose)
Convert between Gray (Gy), rad, milligray (mGy), and microrad (µrad) to analyze absorbed ionizing radiation energy per unit mass.
Nectar ↔ honey — volume reduction during curing
Calculate volume and weight reduction as bees dehydrate raw floral nectar (80% moisture) down to cured honey (18% moisture).