Sailing & Wind Mechanics
Interactive polar vector conversion, boat hydrostatic stability modeling, performance metrics, and navigation vector calculations.
1. Rig & Ballast Configuration
2. Performance Metrics & Hull Analysis
Very powerful sail plan relative to hull weight. Demands skilled active sail trim to avoid overpowering.
SADR is computed by dividing the Sail Area in square feet by the vessel’s displacement in cubic feet of sea water raised to the 2/3 power.
SADR = SailArea (ft²) / [ Displacement (lbs) / 64 ]^(2/3)Explore Additional Utilities
Sheet basis weight — gsm ↔ finished sheet thickness
Convert sheet basis weight to finished sheet caliper thickness based on structural pulp densities.
Flesch-Kincaid Reading Level
Calculate readability scores and Flesch-Kincaid school grade levels for any input text in real-time.
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.
ISO Week Number ↔ Calendar Date
Calculate ISO 8601 week numbers, week dates, and determine start/end weekdays of any given week year.
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.
Fuel Efficiency Converter
Convert between miles per gallon (mpg), liters per 100km (L/105km), and km/liter conversions.
Maritime & Aviation Speed
Convert maritime knots, airspeed parameters, and hourly nautical coordinates.
Displacement tonnage ↔ cubic meters — ship buoyancy
Convert ship displacement tonnage to submerged volume (m³) and buoyancy force. Choose between freshwater and saltwater standards.
Bread Dough Hydration Calculator
Convert between flour weight, water weight, and hydration percentages for perfect baking doughs.
Fuel burn rate — engine HP ↔ liters per hour
Calculate marine engine fuel consumption (liters/hr or gal/hr) using Brake Specific Fuel Consumption (BSFC) or standard marine power constants.
Duration Converter
Convert time intervals seamlessly between weeks, days, hours, minutes, and seconds.
Tire size decoder — 205/55R16 ↔ diameter ↔ width ↔ aspect
Decode metric tire specs to calculate sidewall height, total diameter, circumference, and compare speedometer error against a secondary size.
Current Speed Converter
Convert tidal, ocean, and river current speeds between knots, meters per second (m/s), and kilometers per hour (km/h).
Rope breaking strength — diameter ↔ material ↔ load rating
Estimate minimum breaking strength (MBS) and safe working load (SWL) based on line diameter, material (Dyneema, Nylon, etc.), and safety factors.
Alcohol by Volume & Proof Converter
Convert between alcohol by volume (ABV), proof, and standard alcohol units for drinks and home brewing.
NPK Fertilizer Blend Designer
Calculate exact commercial fertilizer weights (Nitrogen, Phosphate, Potash) required to hit crop nutrient targets.
Drain slope — mm per meter ↔ inches per foot
Convert drainage slope units and calculate vertical height drops across horizontal sewage pipes run lengths.
Block count — wall area ↔ number of blocks needed
Calculate standard concrete masonry units (CMU) or clay bricks required for a wall, adjusting for joint widths and waste factors.
pH Acid/Base Index
Evaluate hydrogen ion concentrations and check acidic or alkaline levels using pH logarithmic scales.
Base Number Converter
Convert raw numbers seamlessly between Binary, Octal, Decimal, and Hexadecimal formats with active bit layouts.