Hydraulics & Fluid Lab
Convert volumetric flows, interconvert dynamic and kinematic viscosity, analyze fluid head pressure columns, model pump efficiency curves, and visualize Reynolds flow regimes.
Head Pressure
Convert between hydrostatic head pressure (meters/feet of water) and fluid pressures like bar, PSI, and Pascals.
0.00 bar (Gauge)
Atmospheric reference point
0.981 bar
14.223 PSI
@ 10m depth
Explore Additional Utilities
Forge temperature — color ↔ degrees Celsius — black to white heat
Reference forging heat ranges with equivalent temperature degrees and workability levels.
Octave Band Converter
Calculate center frequencies, upper/lower band limits, and bandwidths for fractional octave bands (1/1, 1/3 octaves).
Pace, Speed & Time Converter
Convert between different running paces and speeds (min/km, min/mile, km/h, mph) and predict race times.
Color Temperature Converter
Convert between color temperature in Kelvin and Mired units, with descriptive lighting labels and photographic application guides.
Bullet drop — distance ↔ inches ↔ cm at given range
Estimate bullet drop trajectories over distance based on muzzle velocity, projectile mass, and gravitational pull.
Ballistic coefficient ↔ drag — projectile performance
Calculate bullet Sectional Density (SD) and Ballistic Coefficient (BC) using projectile weight, caliber, and form factor.
Half Value Layer (Shielding)
Calculate radiation intensity reduction through shielding materials (lead, steel, concrete, water) using half-value thickness and attenuation.
Tablet Splitting & Cost Calculator
Calculate tablet splitting doses, available whole/half combinations, cost savings, and review critical pill splitting safety guidelines.
Filament weight ↔ length (grams ↔ meters)
Convert between filament physical weight in grams and equivalent spool length in meters based on material density and diameter.
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.
Flow velocity — pipe diameter + flow rate → m/s
Calculate average fluid flow velocity from pipe size or inner diameter and volumetric flow rate values.
Solar Panel Output & Yield Calculator
Calculate daily and annual electricity generation (kWh) based on solar panel capacity (kWp), peak sun hours, and system efficiency losses.
Gear ratio ↔ final drive speed — RPM at given speed
Calculate vehicle road speed or engine RPM based on transmission gear ratios, final drive axle ratio, and tire dimensions.
Chisel bevel angle — degrees ↔ sharpening guide setting
Calculate chisel bevel angles and determine the exact projection distance needed for hone sharpening guides.
Stone size ↔ carat estimator
Estimate carat weight of round, oval, emerald, pear, or marquise cut gemstones from their physical dimensions and specific gravity.
Crop Yield & Land Estimator
Estimate field harvest yields and translate bulk units (bushels, tons) across distinct land measurement scales.
Soil Plasticity Index Calculator
Calculate Plasticity Index (PI) from Liquid Limit (LL) and Plastic Limit (PL), and interpret soil state using the Atterberg limits chart.
De Broglie wavelength — particle mass + velocity → wavelength
Calculate quantum mechanical wavelengths for matter waves under both classical and relativistic velocities.
Hallmark converter (UK date letters ↔ year)
Decode historic and modern UK silver, gold, and platinum hallmarks, converting assay office date letters to exact production years.
Encoder resolution (PPR ↔ degrees per pulse)
Convert between encoder Pulses Per Revolution (PPR), Cycles Per Revolution (CPR), and angular resolution down to arcseconds.