Who We Are — 우리는 누구인가
Watt Calculator is an independent digital engineering initiative and educational resource developed by an international team of licensed professional engineers (PE), electrical engineering researchers, software architects, and STEM educators. We are united by a common conviction: mathematical rigor in electrical science should be accessible, instant, and completely transparent to everyone.
Our team brings together over 40 years of combined hands-on experience spanning industrial power distribution, commercial electrical contracting under National Electrical Code (NEC) standards, renewable solar-plus-storage engineering, and low-power embedded circuit design. We build tools that bridge the gap between abstract textbook formulas and real-world job-site application.
What We Do — 우리가 하는 일
At Watt Calculator, we research, engineer, calibrate, and freely publish high-precision computational tools for electrical power calculations, unit conversions, and circuit analysis. Our platform serves licensed electricians, power systems designers, electrical contractors, university researchers, and vocational students across 19 specialized calculators:
Deterministic 12-formula matrix solving Watts (P), Volts (V), Amps (I), and Ohms (R) with real-time algebraic step-by-step proofs.
3-Phase AC power solvers for Wye and Delta configurations, apparent power (kVA), reactive power (kVAR), and power factor correction.
Photovoltaic solar array sizing, battery capacity & runtime calculators (Watt-hours & Amp-hours), and Level 1/2/3 EV charging power solvers.
NEC 2026 wire gauge (AWG) ampacity tables, continuous load 125% derating rules, voltage drop estimations, and appliance power profiling.
All calculations are performed entirely client-side directly within your device's browser using 64-bit floating-point math. No inputs or electrical parameters are ever transmitted to remote servers, guaranteeing total data confidentiality, zero network latency, and instant results even when disconnected from the internet.
Our Story — 우리의 이야기
Watt Calculator was founded out of a shared frustration with the state of online technical tools. In late 2023, while teaching electrical engineering coursework and conducting field audits for industrial facilities, our founders noticed a recurring problem: existing online electrical calculators were either bloated with intrusive pop-up advertisements, hid their mathematical logic behind mysterious "black-box" buttons, suffered from floating-point rounding errors, or required invasive user registrations and constant internet connectivity.
In early 2024, we set out to build a modern alternative rooted in an uncompromising principle we call the Open Formula Mandate: every calculation must display its intermediate algebraic derivation in real time, normalize to base SI units, and execute 100% locally in the browser with zero tracking.
What started as a single, clean Watt-Volt-Amp-Ohm solver quickly resonated with apprentices, journeyman electricians, university professors, and robotics hobbyists worldwide. In 2025, we expanded the platform into a comprehensive suite of 19 specialized calculators—ranging from 3-Phase industrial AC and EV charger ratings to solar photovoltaic sizing and NEC 2026 wire ampacity tables—and completely localized the entire experience into 18 native languages.
Today, Watt Calculator serves hundreds of thousands of engineers, tradespeople, and students each month. We continue to operate as an independent, ad-respectful engineering utility committed to accuracy, privacy, and open STEM education.
수학적 투명성: 공개 공식 원칙
최종 결과 수치뿐만 아니라 계산에 사용된 대수학적 공식을 실시간으로 제공합니다:
- 공식의 가시화: 두 개의 값을 입력하면 적용된 계산 공식이 즉시 표시됩니다.
- 단위 일관성: 모든 전기 단위는 계산 전 기본 SI 단위로 정규화되어 단위 오류를 방지합니다.
- 정밀 계산: 옴의 법칙과 줄의 법칙 12가지 공식을 수치적 오차 없이 정확하게 계산합니다.
전기 공학 국제 표준 준수
국제 전기 공학 표준(IEEE, IEC, KEC 한국전기설비규정)에 부합하도록 설계되었습니다:
유효전력, 무효전력, 임피던스 행렬의 공학적 정의 준수.
허용전류 계산 및 공칭 전압 기준 반영.
글로벌 표준 전압 규격(220V/380V, 120V/240V) 완벽 지원.
SI 접두어(마이크로, 밀리, 킬로, 메가 등)의 정밀한 환산.
로컬 우선 개인정보 보호 아키텍처
우리는 귀하의 엔지니어링 데이터와 계산 기록이 사적 자산이라고 믿습니다. 입력을 원격 서버나 분석 엔진으로 전송하는 다른 사이트와 달리:
- 100% 클라이언트 연산: 모든 산술 및 단위 변환 연산은 브라우저의 로컬 자바스크립트 엔진 내에서만 처리됩니다.
- 계정 등록 불필요: 회원가입, 결제벽, 뉴스레터 구독 없이 즉시 도구를 이용할 수 있습니다.
- 데이터 전송 제로: 입력된 전압, 전류, 전력 등 회로 매개변수를 서버에 기록하거나 전송하지 않습니다.
공학 자문 및 상호 검증
실무 전기 엔지니어와 공과대학 교수진의 지속적인 검증을 거칩니다.
64비트 배정밀도 부동 소수점을 적용한 자동화 검증 시스템을 운영합니다.
Marcus Vance, PE
전력 시스템 수석 검토관
상업용 배전반 설계, 산업용 모터 제어 및 고전압 계통 보호 분야 20년 이상의 실무 경력.
Dr. Elena Rostova
임베디드 전자공학 전문가
마이크로전자공학 박사; 저전력 IoT 회로, 배터리 화학 동역학 및 열 방출 설계 전문가.
Siddharth Nair
수석 소프트웨어 아키텍트
브라우저 수치 연산, 웹 접근성 표준 및 다국어 현지화 아키텍처 전문 엔지니어.
Parent Company & Legal Entity — 모회사 및 법인
Watt Calculator (accessible at wattcalculator.org) is an official digital computational service and educational publishing property owned, operated, and maintained by its parent company and legal business entity, Watt Calculator Inc.
Corporate & Business Entity Overview
San Francisco, CA 94105, United States
Legal: legal@wattcalculator.org
Corporate Relationship & Operational Governance: As the governing business entity, Watt Calculator Inc. assumes full legal and administrative responsibility for the infrastructure, scientific algorithms, domain assets, intellectual property, and privacy standards implemented across all 18 localized editions of the website.
Editorial Independence Policy: Watt Calculator Inc. enforces strict editorial and engineering autonomy. None of our calculation algorithms, equipment ratings, or educational articles are sponsored by electrical equipment manufacturers, utility corporations, or commercial contractors. All recommendations strictly reflect published engineering standards (IEEE, NFPA/NEC, IEC, and BIPM).