Science Calculators
Physics, Chemistry & More
35 calculators
Available Tools
Speed Calculator
Free speed calculator. Calculate average speed, velocity, and distance traveled.
Force Calculator
Free force calculator. Calculate force using F=ma formula.
Energy Calculator
Free energy calculator. Calculate kinetic and potential energy.
Statistical Power Calculator
Calculate statistical power.
Momentum Calculator
Free momentum calculator. Calculate linear momentum of objects.
Acceleration Calculator
Free acceleration calculator. Calculate rate of acceleration from velocity.
Density Calculator
Free density calculator. Calculate material density from mass and volume.
Pressure Calculator
Free pressure calculator. Calculate pressure from force and area.
Frequency Calculator
Free frequency calculator. Calculate wave frequency and wavelength.
Wavelength Calculator
Free wavelength calculator. Calculate wavelength from frequency. Identify radio, microwave, infrared, visible, UV, X-ray bands.
Ohm's Law Calculator
Free Ohm's Law calculator. Calculate voltage, current, resistance, and power. V=IR and P=VI formulas.
Wattage Calculator
Free wattage calculator. Calculate watts from voltage and current. Estimate electricity costs per day, month, year.
Electricity Cost Calculator
Free electricity cost calculator. Calculate energy bills for multiple appliances. Track kWh usage and costs.
Resistor Calculator
Free resistor calculator. Decode 4, 5, 6 band color codes. Calculate series and parallel resistance.
Capacitor Calculator
Free capacitor calculator. Calculate charge Q=CV, energy, series/parallel capacitance, and capacitive reactance.
LED Resistor Calculator
Free LED resistor calculator. Find the right resistor for your LED circuit. Series and parallel configurations supported.
Battery Life Calculator
Free battery life calculator. Estimate battery runtime from mAh capacity and current draw. Plan your electronics projects.
Voltage Divider Calculator
Free voltage divider calculator. Calculate output voltage, find resistor values, analyze load effects on voltage dividers.
Molecular Weight Calculator
Free molecular weight calculator. Enter a chemical formula to calculate molar mass and elemental composition.
Molarity Calculator
Free molarity calculator. Calculate solution concentration, moles, volume. Dilution calculator with C1V1=C2V2.
Subnet Calculator
Calculate subnet mask, network address, broadcast address, and host range. Free IP subnet calculator with CIDR notation support.
Color Converter
Convert colors between RGB, HEX, and HSL formats. Free color converter with preview and one-click copy for designers and developers.
Solar Panel Calculator
Calculate solar panel system size, costs, savings, and payback period. Includes federal tax credit and environmental impact estimates.
EV vs Gas Cost Calculator
Compare electric vehicle vs gas car total cost of ownership including purchase price, fuel, maintenance, and insurance over time.
Carbon Footprint Calculator
Calculate your personal carbon footprint from transportation, home energy, travel, and lifestyle. Compare to averages and find ways to reduce emissions.
Home Energy Audit Calculator
Analyze your home's energy efficiency. Get recommendations for improvements and estimate potential savings on utility bills.
Heat Pump Calculator
Calculate heat pump sizing, installation cost, energy savings, and payback period. Compare air source vs ground source systems.
Wind Turbine Calculator
Calculate wind turbine energy production, costs, and savings. Estimate annual output based on wind speed, turbine size, and site conditions.
Insulation Calculator
Calculate insulation needs for your home. Find recommended R-values, material costs, and energy savings by climate zone.
LED Savings Calculator
Calculate energy and cost savings from switching to LED bulbs. Compare incandescent, halogen, CFL vs LED with payback period and environmental impact.
Water Usage Calculator
Calculate your household water usage and costs. Estimate daily, monthly, and annual consumption with tips for saving water.
Rainwater Harvest Calculator
Calculate rainwater harvesting potential from your roof. Estimate collection, storage needs, cost savings, and environmental benefits.
Wind Chill Calculator
Free wind chill calculator. Calculate the feels-like temperature based on air temperature and wind speed. Includes frostbite risk warnings and safety tips.
Heat Index Calculator
Free heat index calculator. Calculate the feels-like temperature based on air temperature and humidity. Includes heat danger levels and safety warnings.
BTU Calculator
Free BTU calculator for HVAC sizing. Calculate the BTUs needed for heating and cooling your room based on size, climate, insulation, and sun exposure.