General
Weight Calculator
Convert body weight and item weights across pounds, kilograms, stones, and ounces.
Blog Archive
Archives: Calculators
Explore all editorial articles, guides, and tutorials filed under "Archives: Calculators".
General
Mass Calculator
Convert mass across kilograms, grams, milligrams, pounds (lbs), ounces (oz), stones, and metric tons.
General
URL Encode / Decode
Encode special characters into percent-encoded (%XX) format or decode percent-encoded URLs into clean human-readable query strings.
General
Base64 Encode / Decode
Encode plain text and binary strings into ASCII Base64 format, or decode Base64 data into readable UTF-8 text.
General
Time Card Calculator
Calculate weekly timesheet hours, lunch break deductions, regular hours, overtime hours (1.5x), and gross paycheck earnings.
General
Engine Horsepower Calculator
Calculate engine cubic inch displacement (CID), cubic centimeters (cc), liters, and potential naturally aspirated horsepower from cylinder bore and stroke.
General
Horsepower Calculator
Calculate engine horsepower from torque (lb-ft) and RPM, or estimate vehicle horsepower from quarter-mile elapsed time and trap speed.
General
Molecular Weight Calculator
Calculate the molar mass (molecular weight in g/mol) and mass percentage elemental composition from chemical formulas (e.g. H2O, C6H12O6, NaCl).
General
Molarity Calculator
Calculate solution molarity (M in mol/L), mass of solute (grams), and volume using solute molar mass.
General
Stair Calculator
Calculate staircase dimensions, number of risers, tread depth, stringer length, and incline angle matching International Building Code (IBC).