Science & Technology Calculators — Physics, Chemistry & More
Explore physics formulas, chemistry equations, electrical engineering, and atmospheric science with precise browser-based tools. Browse 13 live calculators including Resistor Color Code, Electricity, Voltage Drop, and BTU. These calculators cover resistor decoding, voltage drop, network subnetting, molecular weight, and environmental conditions — no software needed.
Featured Calculators
Popular tools in this category, linked directly in the page HTML.
Resistor Color Code
Decode resistor values from color bands
Electricity Calculator
Calculate voltage, current, resistance, and power
Voltage Drop Calculator
Calculate voltage drop in electrical circuits
BTU Calculator
Calculate heating and cooling requirements
Wind Chill
Calculate wind chill factor
Dew Point
Calculate dew point temperature
Heat Index
Calculate "feels like" temperature
IP Subnet
Calculate IP subnets and network addresses
Bandwidth Calculator
Calculate download times and data transfer rates
Density Calculator
Calculate density, mass, or volume
Molarity Calculator
Calculate solution concentration
Molecular Weight
Calculate molecular weight of compounds
Speed Calculator
Calculate speed, distance, or time
All Science & Technology Calculators
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