Subtitle Timing & Readability
Verify Netflix/BBC standard timing constraints, characters per second (CPS), and reading ease compliance.
Explore Additional Utilities
Explosive charge weight — rock volume ↔ kg of explosive
Estimate required explosives (kg, lbs) for blasting a rock volume using powder factor models for open-pit mining.
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.
Freefall time — altitude ↔ seconds in freefall
Estimate freefall duration and terminal velocity based on exit altitude, deployment altitude, and body position.
Dewpoint & Relative Humidity Calculator
Calculate dewpoint, relative humidity, or air temperature using the Magnus-Tetens formula.
Sievert ↔ rem (Dose Equivalent)
Convert between Sieverts (Sv), rem, millisieverts (mSv), and millirem (mrem) to quantify biological effects and occupational radiation risk.
Watch case size — mm diameter ↔ lug width
Analyze watch case diameter proportions, lug-to-lug spans, and find the corresponding standard strap lug-width sizes.
Cycling FTP & Power Zone Calculator
Calculate personalized cycling power training zones (Coggan 7-zone model) based on your Functional Threshold Power (FTP) in watts.
Drug Concentration Converter
Convert pharmaceutical concentrations between % w/v, mg/mL, and mol/L using substance molecular weight presets.
Water resistance — ATM ↔ bar ↔ meters depth rating
Convert water pressure tolerances across ATM, Bar, and depth meters. Understand safe real-world water sport activities.
Superfat percentage — excess oil ↔ skin conditioning level
Calculate excess unsaponified superfat oils and skin-conditioning moisture metrics.
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.
Recycling Weight & Resource Savings Calculator
Convert quantities of recycled materials (plastic, glass, paper, aluminum) into greenhouse gases, water, and landfill space saved.
Body Surface Area (BSA) Calculator
Calculate body surface area (BSA) for clinical dosing using Mosteller, DuBois, Haycock, and Gehan-George formulas.
Voltage Divider Designer
Calculate output voltage, resistor ratios, and locate standard E24 resistor values for divider networks.
DPI Screen Density Sizing
Calculate typographic sizing differences across varying screen device densities and target DPI scopes.
Fabric Width Yardage Converter
Convert fabric yardage requirements between different standard widths like 44 inches and 60 inches.
Depth ↔ Geostatic & Hydrostatic Pressure
Determine lithostatic (rock overburden) and hydrostatic (fluid) pressure at custom geological underground depths or deep underwater.
Tidal current ↔ drift
Calculate course to steer and speed over ground (or set and drift) to compensate for tidal current and wind leeway.
Water hammer pressure — velocity ↔ pressure spike
Determine the maximum instantaneous water hammer pressure shockwave surge from sudden flow velocity shutdowns.
Carat weight ↔ grams
Convert between diamond or gemstone carats, metric grams, grains, and points of gem weight.