Advanced Swimming Kinematics
Calculate stroke rates (SPM), model distance per stroke (DPS), evaluate SWOLF efficiency scores, breakout speeds, and hydro-dynamic drag suit resistances.
Configure Parameters
DPS vs Stroke Rate Balance: Speed is the pure product of DPS × Stroke Rate. Elite swimming values maximizing DPS at lower stroke frequencies to limit anaerobic lactic asset drainage.
Explore Additional Utilities
Clothing Size Converter
Convert apparel sizes (XS to 3XL) across US, UK, European, and Asian standards.
Fragrance concentration — EDC ↔ EDT ↔ EDP ↔ parfum %
Calculate fragrance oil and diluent volumes/weights for Eau de Cologne, Toilette, Parfum, and Extrait profiles.
Thread count ↔ fabric quality rating
Calculate and convert cotton single-ply thread counts to analyze and rate fabric quality and softness.
Wave height ↔ wave period — sea state description
Assess Significant Wave Height, period, WMO sea states, wave wavelength, celerity speed, and steepness limits.
Firewood volume — cords ↔ cubic meters ↔ cubic feet
Convert between cords, face cords, steres, and cubic volumes. Compute solid wood volumes, green or dry weight, and thermal BTU outputs.
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.
Chlorophyll concentration ↔ water color index
Convert Chlorophyll-a bio-concentrations (mg/m³) to ocean water color classes, Forel-Ule index, and trophic status.
Thread length — stitch count ↔ thread needed
Calculate thread length needed for saddle stitching based on stitch line length, leather thickness, and spacing density.
Vibration Converter (d ↔ v ↔ a)
Convert sinusoidal mechanical vibration parameters between displacement, velocity, and acceleration at a given frequency.
Wax yield — honey weight ↔ beeswax produced
Calculate estimated beeswax yields as a function of harvested honey comb or calculate honey consumption needed to build wax.
Arrow spine ↔ draw weight + length — stiffness matching
Estimate required arrow static spine rating (stiffness) based on bow draw weight, arrow length, and bow type.
Solar heat gain coefficient ↔ shading factor
Convert Solar Heat Gain Coefficient (SHGC) to Shading Coefficient (SC) for solar radiation control.
Denim Weight Converter
Convert denim fabric weight between ounces per square yard (oz/yd²) and grams per square meter (gsm) with fabric weight classifications.
Scale factor (model size ↔ real world)
Convert dimensions between model design sizes and physical real-world scale targets, including imperial/metric conversions.
Luminous Efficacy Calculator
Calculate and compare the luminous efficacy (lumens per watt) of various lighting technologies, with detailed efficiency and rating analysis.
Cure time — soap thickness ↔ days to harden
Forecast recommended bar cure durations and hardening rates based on shape profile dimensions.
Flow Rate Converter
Convert volumetric flow rates between cubic meters per second (m³/s), liters per minute (L/min), gallons per minute (GPM), and other flow units.
Reynolds Number Simulator
Determine fluid flow regimes (laminar, transitional, or turbulent) by calculating the dimensionless Reynolds number from velocity, diameter, and viscosity.
Visual Acuity Converter
Convert visual acuity measurements between Snellen US (20/20), Snellen Metric (6/6), decimal, LogMAR, and Percentage systems.
Button Size Converter
Convert button measurements between traditional ligne (L), millimeters, and fractional inches.