Intaglio Acid EtchingPress Guild
Calculate plate etching duration in nitric acid or ferric chloride based on metal type and Baumé strength.
Process Notice:
Calculated bite rates are structured for a chemical temperature of 20°C. If room temperatures are lower, add 10% to the etching time; if higher, reduce by 10%. Check depths periodically.
Explore Additional Utilities
Paint Coverage Calculator
Estimate the gallons or liters of paint needed based on area and number of coats.
Equatorial Coordinates Converter
Convert Right Ascension (RA) and Declination (Dec) to Hour Angle and Alt-Azimuth coordinates.
Solar heat gain coefficient ↔ shading factor
Convert Solar Heat Gain Coefficient (SHGC) to Shading Coefficient (SC) for solar radiation control.
Glass thickness ↔ wind load — structural glazing
Calculate structural glass pane thickness required to withstand architectural wind load pressures.
Karat purity (Karat ↔ Fineness ↔ % gold)
Convert gold purity levels between Karat values, parts-per-thousand millesimal fineness, and pure gold percentage.
Dewpoint & Relative Humidity Calculator
Calculate dewpoint, relative humidity, or air temperature using the Magnus-Tetens formula.
Water Footprint & Virtual Water Calculator
Estimate virtual water consumption based on diet choices, household activities, and direct/indirect product footprints.
SWOLF score — strokes + seconds per length
Calculate and track your SWOLF efficiency score based on lap time and stroke count for various pool lengths.
Power reserve — mainspring tension ↔ hours of run time
Compute total mainspring operational run time based on turns of wind, barrel capacity, and balance wheel beat rate demands.
Cloud Base Height Estimator
Estimate cloud condensation levels and cloud base height based on temperature and dewpoint spreads.
Beaufort Wind Force Scale
Convert wind speed units and classify storm conditions on the official Beaufort maritime wind power scale.
Water resistance — ATM ↔ bar ↔ meters depth rating
Convert water pressure tolerances across ATM, Bar, and depth meters. Understand safe real-world water sport activities.
Draw weight — lbs ↔ kg — bow poundage
Convert between Pounds (lbs) and Kilograms (kg) draw weights. View recommended setups for various target types.
Cycling FTP & Power Zone Calculator
Calculate personalized cycling power training zones (Coggan 7-zone model) based on your Functional Threshold Power (FTP) in watts.
Cooking Unit Converter
Convert kitchen recipe volume structures: cups, milliliters, tablespoons, teaspoons, and fluid ounces.
Paper size ↔ finished model size — origami scaling
Determine required starting paper square dimensions to fold specific final 3D origami model sizes.
Hardness converter — Rockwell ↔ Brinell ↔ Vickers
Convert between Rockwell C, Rockwell B, Brinell, and Vickers scales with approximate tensile strengths for steel materials.
GPS Format Converter
Convert global latitude and longitude between Decimal Degrees (DD) and Degrees Minutes Seconds (DMS).
Wood moisture content ↔ shrinkage percentage
Calculate expected wood dimensional shrinkage (radial, tangential, volumetric) based on changes in wood moisture content below fiber saturation point.
Shrink Wrap Roll Coverage
Determine how many pallets can be wrapped with a single shrink wrap roll based on roll dimensions, gauge, and layers.