Flight Visibility & RVR Converter
Compare meteorological visibility and runway visual range (RVR) across nautical, statute, and metric scales.
Explore Additional Utilities
Base64 ↔ hex ↔ binary — encoding format converter
Convert raw text strings or bytes bidirectionally between Base64, Hexadecimal, Binary, and standard ASCII formats.
International Hat Size Matcher
Convert hat dimensions across US, UK, and European standards.
Nautical Distance & Speed Sizer
Convert distances between nautical miles, statute miles, and kilometers, and calculate knot-based speeds.
Royal jelly production — nurse bee count ↔ grams per day
Calculate potential royal jelly production based on young nurse bee count and queen cell graft rates.
Refrigerant charge — system size ↔ kg of refrigerant
Estimate split system factory and added line set refrigerant charge adjustments using liquid tube diameters.
Semaphore flag positions ↔ letters
Map letters to naval Semaphore flag clock angles and visualize the exact left/right arm positions interactively.
Network Bandwidth Rates
Compare network bandwidth speed rates across Mbps, Megabytes, and hourly rates.
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.
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.
Paper size ↔ finished model size — origami scaling
Determine required starting paper square dimensions to fold specific final 3D origami model sizes.
Infill density (% ↔ structural strength)
Estimate mechanical tensile strength and relative part weight based on infill percentage, material choice, and shell count.
Thermal conductivity — W/m·K ↔ BTU·in/hr·ft²·°F
Translate thermal conductivity values between W/m·K, BTU·in/hr·ft²·°F, and other units.
Chart Scale Converter
Convert map dimensions in millimeters to real-world marine navigation distances or vice versa based on nautical chart scale.
Yeast pitch rate — batch volume + gravity → grams of yeast
Determine required yeast cell counts and dry yeast weight based on batch volume, wort gravity, and target pitch rates.
Crease pattern scale — diagram size ↔ actual paper needed
Scale geometric origami crease patterns and tessellations to starting square sheet sizes.
Data Storage Units
Convert digital storage capacity sizes across bits, Bytes, MB, GB, and Terabytes.
IPv4 ↔ decimal ↔ binary — IP address formats
Translate standard dot-decimal IPv4 addresses to raw decimal integers and 32-bit binary representations.
Heel angle ↔ righting moment
Calculate heel angle, righting arm (GZ), righting moment, and sailboat stability from displacement, vertical center of gravity, and wind force.
Navy Body Fat Estimator
Estimate body fat percentage using standard US Navy circumference measurements.
Lye calculator — oil weight ↔ NaOH ↔ KOH amount
Determine exact NaOH and KOH weights required for cold and hot-process soap formulation batches.