Fabric Width Yardage Estimator
Convert fabric yardage requirements between standard widths (such as 44" and 60") while preserving material area.
2.25 Yds
2.25 Yds
Buying wider fabric (60") than pattern suggests (44") reduces the length you need to purchase by 36%.
⚠️ Note: Ensure your design pattern fits on the new width. Narrower pattern pieces easily accommodate wider layouts, but wide pattern panels (e.g. circle skirts) might not physically fit on narrow fabrics regardless of overall yardage.
Explore Additional Utilities
Weld throat thickness ↔ leg length — fillet weld geometry
Convert between throat thickness and leg length for fillet welds. Estimate joint volume, weld weight, and shear load capacity.
Pulp consistency — dry fiber % ↔ water ratio
Calculate dry fiber weight percentage in wet pulp slurry and water mixing dilution ratios for vat dipping.
Beaufort Wind Force Scale
Convert wind speed units and classify storm conditions on the official Beaufort maritime wind power scale.
Mortar mix ratio — cement ↔ sand ↔ water by weight
Calculate standard masonry mortar mix classes (Type M, S, N, O, K) and determine precise cement, sand, and water weights.
Packet size ↔ transmission time — network planning
Model network serialization delays and transit times across various network speeds and bandwidth options.
Shoe Size Converter
Convert footwear sizes across US, UK, Europe, and Japanese standards for men and women.
Supersonic Mach Speed
Assess sonic speed boundaries and atmospheric Mach velocities relative to local dry conditions.
Flesch-Kincaid Reading Level
Calculate readability scores and Flesch-Kincaid school grade levels for any input text in real-time.
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.
Paper Size Comparer
Convert standard paper formats (A4, Letter, Legal, A3) in mm/inches and visually compare overlap.
Drain slope — mm per meter ↔ inches per foot
Convert drainage slope units and calculate vertical height drops across horizontal sewage pipes run lengths.
Dovetail angle — ratio ↔ degrees for hardwood vs softwood
Convert dovetail joint slope ratios (e.g. 1:6, 1:8) to slope angles in degrees and verify hardwood/softwood suitability.
Heat Index Feels-Like
Assess felt air heat indexes using ambient temperature and relative humidity thresholds.
Engine power ↔ hull speed — planing vs displacement
Estimate maximum displacement hull speeds (LWL formula) or calculate planing hull speeds using Crouch's classic marine formula.
Flash Guide Number Calculator
Solve the photography flash equation to find guide numbers, aperture, subject distance, or ISO speed for perfect manual flash exposures.
Capacitor & Inductor Codes
Convert between capacitance and inductance units, and decode SMD/3-digit codes.
Board feet ↔ cubic meters ↔ cubic feet — lumber volume
Convert lumber volume measurements between Board Feet, Cubic Feet, and Cubic Meters.
Mechanical Power (W ↔ hp)
Convert physical engine horsepower ratings, mechanical draft forces, and electric wattages.
Torque Converter
Convert rotating force indicators between Newton-meters (Nm), pound-feet (lb-ft), and kgf·m.
Fuel burn rate — engine HP ↔ liters per hour
Calculate marine engine fuel consumption (liters/hr or gal/hr) using Brake Specific Fuel Consumption (BSFC) or standard marine power constants.