Earthquake Magnitude (Richter ↔ Moment)
Convert and compare earthquake magnitude scales, calculating shaking amplitude ratios, energy release equivalents (TNT), and felt effects.
Explore Additional Utilities
Warp and weft density — ends per cm ↔ picks per cm
Convert thread density between ends/picks per centimeter and ends/picks per inch (EPI/PPI).
Eye size — skull diameter ↔ glass eye mm
Estimate ideal glass taxidermy eye sizes (in mm) and pupil types from skull diameter, socket dimensions, or species.
Capacitor & Inductor Codes
Convert between capacitance and inductance units, and decode SMD/3-digit codes.
Hot water demand — occupants ↔ liters per hour needed
Estimate peak hot water demand in liters per hour and size standard water heater tanks or tankless flow rates.
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.
Inverter sizing — load watts ↔ VA rating needed
Analyze total AC continuous and surge loads to specify the ideal inverter Volt-Amp (VA) and wattage ratings.
Flow velocity — pipe diameter + flow rate → m/s
Calculate average fluid flow velocity from pipe size or inner diameter and volumetric flow rate values.
Manuscript Page Formatter
Estimate approximate published book page count from total word count and format specs.
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.
NPK Fertilizer Blend Designer
Calculate exact commercial fertilizer weights (Nitrogen, Phosphate, Potash) required to hit crop nutrient targets.
Thermal expansion coefficient — glaze fit calculation
Predict glaze-on-clay crazing or shivering by matching thermal expansion coefficients (COE).
Cable run — signal type + length → gauge required
Compute copper loop line resistance, voltage drop, and power loss to recommend the optimal wire gauge size (AWG).
Audio File Size & Sample Rate
Compute uncompressed audio files size based on sample rate, bit depth, and duration.
Base64 ↔ hex ↔ binary — encoding format converter
Convert raw text strings or bytes bidirectionally between Base64, Hexadecimal, Binary, and standard ASCII formats.
Dialect vowel shift — IPA symbol ↔ regional pronunciation
Trace IPA vowel phonemes across global English dialects, analyzing shifts like the Northern Cities and Southern vowel rotations.
CMYK ↔ Pantone Matcher
Approximate CMYK values to the closest solid Pantone matching system (PMS) color swatch.
Current Speed Converter
Convert tidal, ocean, and river current speeds between knots, meters per second (m/s), and kilometers per hour (km/h).
Bread Dough Hydration Calculator
Convert between flour weight, water weight, and hydration percentages for perfect baking doughs.
Engine power ↔ hull speed — planing vs displacement
Estimate maximum displacement hull speeds (LWL formula) or calculate planing hull speeds using Crouch's classic marine formula.
Nautical Distance & Speed Sizer
Convert distances between nautical miles, statute miles, and kilometers, and calculate knot-based speeds.