Explore Additional Utilities

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.

plumbing

Industrial & Tire Pressure Gauges

Convert heavy industrial or automotive pressure indicators across PSI, bar, kPa, and atm indexes.

unit

Magnetic Declination

Estimate compass alignment values and offset angles between magnetic north and true north.

devtools

Navy Body Fat Estimator

Estimate body fat percentage using standard US Navy circumference measurements.

health

Exposure Triangle & F-Stop

Calculate absolute stop adjustments, exposure reciprocal tradeoffs, f-stop quotients, and ISO noise tradeoffs.

unit

Inverter sizing — load watts ↔ VA rating needed

Analyze total AC continuous and surge loads to specify the ideal inverter Volt-Amp (VA) and wattage ratings.

renewable-energy

Responsive Font Units Converter

Compute points, pixels, em, rem web font guidelines, and equivalent font sizes.

devtools

Flash Guide Number Calculator

Solve the photography flash equation to find guide numbers, aperture, subject distance, or ISO speed for perfect manual flash exposures.

unit

Air changes per hour — room volume ↔ fan capacity

Evaluate active ventilation air changes per hour (ACH) based on blower CFM capacity and physical room volume.

hvac-thermal

Fabric & Thread Density Calibrator

Analyze fabric weights, compare cotton single-ply thread counts, and calculate textile density.

unit

Alcohol by Volume & Proof Converter

Convert between alcohol by volume (ABV), proof, and standard alcohol units for drinks and home brewing.

unit

Tree diameter ↔ basal area — forestry measurement

Convert tree breast height diameters to single tree basal area or estimate stand basal area densities per acre or hectare.

forestry

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.

masonry-concrete

Chisel bevel angle — degrees ↔ sharpening guide setting

Calculate chisel bevel angles and determine the exact projection distance needed for hone sharpening guides.

woodworking

Light intensity — PPFD ↔ lux ↔ watts per sq meter

Convert between Photosynthetic Photon Flux Density (PPFD/PAR), illuminance (Lux/Foot-candles), and grow light wattage requirements.

hydroponics

Blood Glucose Converter

Convert blood glucose levels between mmol/L and mg/dL, with diabetic range assessments and HbA1c approximations.

unit

Speech Rate (WPM ↔ Pages)

Calculate presentation speech times, audio length, and page count equivalents using custom words per minute (WPM).

devtools

Dew point ↔ condensation risk — wall insulation check

Check wall surface dew point parameters and assess condensation and mold growth risks from room relative humidity.

hvac-thermal

Board feet ↔ cubic meters ↔ cubic feet — lumber volume

Convert lumber volume measurements between Board Feet, Cubic Feet, and Cubic Meters.

woodworking

Gray ↔ rad (Absorbed Dose)

Convert between Gray (Gy), rad, milligray (mGy), and microrad (µrad) to analyze absorbed ionizing radiation energy per unit mass.

unit