Base Number System Converter
Convert Decimal, Binary, Hex, and Octal formats with interactive 16-bit register controls.
Interactive 16-Bit Register Bitboard
Manually trigger individual electronic switches. Toggling a bit box instantly calculates the underlying 16-bit register value:
The dec character 42 translates to ASCII character: *
Explore Additional Utilities
Legal Billable Hours Estimator
Convert word count of legal drafting documents to estimated billable hours based on complexity and billing rates.
Coffee Brewing Ratio Calculator
Determine the perfect coffee-to-water brewing ratio based on grams of coffee, milliliters of water, and cup size.
Power to weight ratio — watts ↔ w/kg — cycling performance
Determine cycling performance power-to-weight ratio (W/kg) based on wattage and body weight.
Hash output size — MD5 ↔ SHA1 ↔ SHA256 ↔ SHA512 bits
Analyze hash function characteristics (MD5, SHA-1, SHA-2, SHA-3), including bit size, hex length, collision vulnerability, and use cases.
Propeller pitch ↔ boat speed — theoretical boat speed
Calculate theoretical boat speed and actual speed based on propeller pitch, engine RPM, gear ratio, and hull slip percentages.
Clothing Size Converter
Convert apparel sizes (XS to 3XL) across US, UK, European, and Asian standards.
Frequency ↔ wavelength — antenna length calculation
Determine electromagnetic wavelength from frequency and velocity factors. Get recommended quarter-wave and half-wave antenna lengths.
Electron volts ↔ joules ↔ nanometers — photon energy
Convert between photon energy (eV, Joules) and physical wavelengths (nm, pm) or frequency (THz).
Musical Note ↔ Frequency
Translate standard musical notes and octaves to precise audio hertz frequencies.
Reproductive Health Tracking Suite
Track menstrual cycles, predict ovulation day, fertile windows, and estimate pregnancy due dates & milestones.
Cooking Unit Converter
Convert kitchen recipe volume structures: cups, milliliters, tablespoons, teaspoons, and fluid ounces.
BPM ↔ Milliseconds Calibrator
Convert beats per minute (BPM) to millisecond delay values and frequency hertz.
Body Mass Index (BMI) & Waist
Calculate Body Mass Index (BMI) and Waist-to-Height ratios to assess body composition.
Battery capacity — Ah ↔ Wh ↔ days of autonomy
Convert between Amp-hours (Ah) and Watt-hours (Wh) and calculate battery bank backup days of autonomy based on loads.
Morse code ↔ NATO phonetic — dual encoding
Convert raw text into international Morse Code (DITs and DAHs) and official NATO spelling phonetics synchronously.
Flight Altitude Calibrator
Convert cruise altitudes between feet, meters, and flight levels, and estimate standard air temperature and oxygen rules.
DPI Screen Density Sizing
Calculate typographic sizing differences across varying screen device densities and target DPI scopes.
Water hammer pressure — velocity ↔ pressure spike
Determine the maximum instantaneous water hammer pressure shockwave surge from sudden flow velocity shutdowns.
Stride length ↔ cadence ↔ running speed
Analyze running biomechanics: calculate speed based on cadence (SPM) and stride length.
US Inflation Adjuster
Evaluate historical purchasing power changes in the United States using official CPI records.