Calculate electrical power for single phase systems by converting between , , and . Input values to solve for unknowns. Support for three phase calculations including kilowatts, , , and power factor.
Perform electrical calculations for contractors, designers, and electricians. Calculate load, voltage drop, conduit fill, and panel sizing. Verify compliance with NEC® codes from 1996 to 2023. Store and retrieve past calculations.
Calculate electrical values using formulas for voltage, current, resistance, power, and more. Determine wire size and voltage drop. Perform transformer and generator calculations. Convert between electrical units.
ContractorCalculator helps users perform on-the-go calculations for square footage, measurement conversions, and fraction math. It supports trade-specific tasks like amps to watts and wire size.
Beijing Huatian addition software development center
Earn animals by completing activities
Learn about animals through interactive games and facts. Complete activities to earn animals and build a zoo. Explore facts about bugs, sharks, reptiles, amphibians, birds, and mammals. Engage with a pet system and educational games.
Basic Chinese words through a matching game with picture and character pairs. Tap to find matching pairs. Access additional games for further practice on the website.
Practice phonics and reading skills through interactive games. Identify beginning, middle, and ending sounds of words. Play twelve games focusing on recognition and letter usage. Learn to use lowercase letters and sounds instead of letter names.
Calculate charging speed and optimize device power
Measure charging wattage and milliamp rates to assess charging speed. Track charge duration and effectiveness for comparison. Calculate optimal charging combinations for device efficiency.
Practice ear with custom exercises based on user-selected songs. Identify notes, intervals, and chords. Track progress over time. Adjust difficulty levels. Export sessions for review.
Drive cranes, dump trucks, forklifts, and helicopters with realistic physics controls. Rotate, elevate, extend, and grapple to solve puzzles and complete challenges. Track progress and improve spatial skills through various levels and scenarios.
Brain training game allows users to match cards in increasing difficulty from 12 to 24 and 36. Features include animal, color, letter, and shape cards. Track personal scores and compete with friends. No ads or in- purchases.