// conversions

⇄ Conversions

Units, measures, and constants — every domain.

1 · Basic Converters 11

Area Converter result = value × (from→m²) ÷ (to→m²)
Currency Converter target = amount × rate(from→to)
Data Storage Converter result = value × (from→bit) ÷ (to→bit)
Energy Converter result = value × (from→J) ÷ (to→J)
Force & Thrust Converter result = value × (from→N) ÷ (to→N)
Mass Converter result = value × (from→kg) ÷ (to→kg)
Power Converter result = value × (from→W) ÷ (to→W)
Scale Converter result = value × (from→metre) ÷ (to→metre)
Speed Converter result = value × (from→m/s) ÷ (to→m/s)
Temperature Converter K = f(value); target = g(K). Affine: °C+273.15; (°F−32)×5/9+273.15; °R×5/9
Time Converter result = value × (from→s) ÷ (to→s)

2 · Mechanics & Fluids 8

Acoustics & Signal Converter dB = 20·log10(p/p_ref); p_ref = 20 µPa. 1 Bel = 10 dB; 1 Np = 20/ln10 dB.
Angular Velocity Converter result = value × (from→rad/s) ÷ (to→rad/s)
Chemical Specific Energy Converter result = value × (from→MJ/kg) ÷ (to→MJ/kg)
Flow Rate Converter result = value × (from→m³/s) ÷ (to→m³/s)
Pressure Converter result = value × (from→Pa) ÷ (to→Pa)
Specific Impulse Converter Isp(m/s) = Isp(s) × g₀; g₀ = 9.80665 m/s². Base = N·s/kg = m/s.
Stress & Modulus Converter result = value × (from→Pa) ÷ (to→Pa)
Viscosity Converter result = value × (from→Pa·s) ÷ (to→Pa·s); kinematic via m²/s

3 · Thermal, Materials & Everyday 8

Clinical Lab Value Converter mmol/L = (mg/dL × 10) ÷ molar mass; mg/dL = (mmol/L × molar mass) ÷ 10
Clothing Size Converter Lookup: match source size in region column, read across the row.
Density & Shipping Weight Converter weight = volume × density
Heat Flux Converter result = value × (from→W/m²) ÷ (to→W/m²)
Retail Packaging Converter units = qty × (cases/pallet × packs/case × units/pack), scaled from the chosen level
Thermal Conductivity Converter result = value × (from→W/(m·K)) ÷ (to→W/(m·K))
Thermal Expansion Coefficient Converter result = value × (from→1/K) ÷ (to→1/K); 1/°F = 1.8 × 1/K
Volume Converter result = value × (from→m³) ÷ (to→m³)

4 · Dimensionless Number Engines 6

Biot Number Calculator Bi = h·L ÷ kₛ
Mach Number Calculator M = v ÷ √(γ·R·T)
Nusselt Number Calculator Nu = h·L ÷ k
Prandtl Number Calculator Pr = Cp·μ ÷ k
Reynolds Number Calculator Re = ρ·v·L ÷ μ