Stage Lighting (Lux ↔ fc ↔ Beam)Event & Production
Convert illuminance between Lux and Foot-candles. Calculate beam spread coverage diameter and center-beam intensity at specific throw distances.
The throw distance greatly affects perceived light levels because intensity degrades with the square of the distance. Wider beam angles spread the light energy over larger surface areas, reducing lux rapidly.
Standard light level for corporate panel discussions, general stage lighting, or acoustic sessions.
Explore Additional Utilities
Fabric & Thread Density Calibrator
Analyze fabric weights, compare cotton single-ply thread counts, and calculate textile density.
Kite size — wind speed ↔ rider weight
Calculate the recommended kite size in square meters (m²) based on rider weight and wind speed.
Speech Rate (WPM ↔ Pages)
Calculate presentation speech times, audio length, and page count equivalents using custom words per minute (WPM).
Color Code Converter
Instantly convert between HEX, RGB, HSL, and CMYK color spaces with a visual real-time preview and slider inputs.
Data Storage Units
Convert digital storage capacity sizes across bits, Bytes, MB, GB, and Terabytes.
Solar irradiance — W/m² ↔ peak sun hours
Convert solar irradiance (W/m²) and daylight duration to Peak Sun Hours (PSH) and estimate daily solar panel system output.
Electron volts ↔ joules ↔ nanometers — photon energy
Convert between photon energy (eV, Joules) and physical wavelengths (nm, pm) or frequency (THz).
Fiscal Year ↔ Calendar Year Mapping
Map calendar months and dates to custom corporate Fiscal Years (FY) and quarters (Q1–Q4) with customizable fiscal start months.
Time Zone Converter
Compare and convert times between universal time zones with ease.
Rock density ↔ tonnage — volume to weight for blasting
Determine solid rock and broken loose rock tonnage from volume based on rock type densities, useful for blasting and haulage design.
Planck units ↔ SI units — fundamental physics constants
Translate between SI physical units and the fundamental Planck natural units based on universal constants.
Hijri ↔ Gregorian Calendar
Convert between Islamic Hijri calendar and standard Gregorian dates, with customized crescent visibility observation adjustments.
Wave height ↔ wave period — sea state description
Assess Significant Wave Height, period, WMO sea states, wave wavelength, celerity speed, and steepness limits.
Livestock Live Weight ↔ Carcass Yield
Estimate hot carcass weight (HCW), dressing percentage, and final retail cut take-home meat yield for beef, pork, lamb, and goat.
Base64 Encoder
Encode textual strings to Base64 format, or decode Base64 back to raw text.
Reynolds Number Simulator
Determine fluid flow regimes (laminar, transitional, or turbulent) by calculating the dimensionless Reynolds number from velocity, diameter, and viscosity.
Salinity for species — ppt ↔ specific gravity ↔ conductivity
Convert salinity values between ppt, Specific Gravity (SG), and Electrical Conductivity (mS/cm). Learn about species target zones.
Dewpoint & Relative Humidity Calculator
Calculate dewpoint, relative humidity, or air temperature using the Magnus-Tetens formula.
Wet folding moisture — paper weight ↔ water absorption
Calculate optimal water moisture weight to apply based on paper GSM and wood fiber absorption capacity.
Water resistance — ATM ↔ bar ↔ meters depth rating
Convert water pressure tolerances across ATM, Bar, and depth meters. Understand safe real-world water sport activities.