Sailing & Wind Mechanics
Interactive polar vector conversion, boat hydrostatic stability modeling, performance metrics, and navigation vector calculations.
1. Vector Heading & Drift Spec
2. Navigation Vector Triangle
Explore Additional Utilities
Water discount — full water ↔ reduced water ratio
Optimize water discount levels and water-to-lye concentration ratios to speed up soap curing.
Pipe nominal size ↔ actual OD — NPS vs DN standards
Cross-reference standard Nominal Pipe Sizes (NPS) with Diameter Nominal (DN), wall thickness, and outer diameter measurements.
US Inflation Adjuster
Evaluate historical purchasing power changes in the United States using official CPI records.
Flow velocity — pipe diameter + flow rate → m/s
Calculate average fluid flow velocity from pipe size or inner diameter and volumetric flow rate values.
ISO Week Number ↔ Calendar Date
Calculate ISO 8601 week numbers, week dates, and determine start/end weekdays of any given week year.
Render thickness ↔ coverage per bag
Determine dry render mix weight and bag counts for a target wall area and application thickness. Assess single bag yields.
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.
Thread count ↔ fabric quality rating
Calculate and convert cotton single-ply thread counts to analyze and rate fabric quality and softness.
Exposure Triangle & F-Stop
Calculate absolute stop adjustments, exposure reciprocal tradeoffs, f-stop quotients, and ISO noise tradeoffs.
Sugar Syrup Ratio Calculator
Calculate water and sugar ratios for simple, rich, and Demerara syrups by volume and weight.
Envelope size — letter size ↔ envelope dimensions needed
Match standard paper formats and fold styles to commercial envelope dimensions with proper clearance parameters.
Carbon sequestration — tree species + size → kg CO2 stored
Estimate total green weight, dry organic biomass, carbon mass, and cumulative CO2 equivalent sequestered by an individual tree.
Magnetic Declination
Estimate compass alignment values and offset angles between magnetic north and true north.
Water cement ratio ↔ compressive strength
Estimate 28-day concrete compressive strength from the water-cement (W/C) ratio using Abrams' Law, or solve for desired strengths.
dB gain ↔ power ratio — amplifier and antenna specs
Convert logarithmic decibels (dB) to linear power and voltage ratios, or translate absolute power in Watts to dBm.
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.
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).
Concrete strength — MPa ↔ psi ↔ N/mm²
Convert concrete compressive strength between MPa, psi, and N/mm². View typical application guidelines and concrete classes.
Net metering — units exported ↔ bill credit estimate
Estimate utility bill credits, net energy offsets, and financial yields under 1:1 net metering or dual-rate net billing programs.
Duration Converter
Convert time intervals seamlessly between weeks, days, hours, minutes, and seconds.