🧪

Calculadora de pH — Ferramenta online grátis

pH a partir de concentração [H⁺], pOH, pKa/pKb

Calcule pH a partir de [H⁺], pOH ou pKa. Converta entre pH, pOH, molaridade H⁺ e OH⁻. Gratuito e sem cadastro.

Enter any one value — others compute automatically

📚
Saiba mais

pH calculator

Calculate pH, pOH, [H⁺], [OH⁻] from any one value. At 25°C.

How to use this tool

  1. 1

    Enter any one value

    pH, pOH, [H⁺], or [OH⁻].

  2. 2

    See all others

    Computed automatically at 25°C.

  3. 3

    Classify solution

    Acidic, neutral, or basic.

Frequently Asked Questions

pH + pOH = 14?
Yes, at 25°C. pH = -log₁₀[H⁺]. pOH = -log₁₀[OH⁻]. Water equilibrium: [H⁺][OH⁻] = 10⁻¹⁴.
pH scale
0-6 acidic, 7 neutral, 8-14 basic. Each unit = 10× concentration change. pH 3 has 10× more H⁺ than pH 4.

Pontos-chave

  • pH Calculadora is a free, browser-based calculator tool — ph from [h⁺] concentration, poh, pka/pkb.
  • Não signup, no downloads, no file uploads. Ferramentas run in your browser; the few that need an outside service say so on the page.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use pH Calculadora

  1. Open the tool: Launch pH Calculadora on Ferramentaolis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

pH Calculadora — Quick Facts

Preço
Grátis — sem limites, sem marca d’água, sem paywall
Privacidade
Processado no seu navegador. Ferramentas que precisam de um serviço externo avisam isso na página. As visitas são contadas (Google Analytics).
Plataforma
Qualquer navegador moderno — desktop, tablet ou celular
Categoria
Calculadora Ferramentas on Ferramentaolis
Offline
Works offline after first visit (Progressive Web App)
RecursoDetalhes
FerramentapH Calculadora
CategoriaCalculadora
Cadastro necessárioNão
Upload de arquivoNenhum — processado no navegador
Suporte mobileTotalmente responsivo
CustoGrátis para sempre

Why Use pH Calculadora?

You should try pH Calculadora for a quick, private way to ph from [h⁺] concentration, poh, pka/pkb. Processing happens in your browser and files are never uploaded; the few tools that need an outside service say so on the page.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

You might also like

🔒
100% Privacidade. Esta ferramenta funciona inteiramente no seu navegador. Seus dados nunca são enviados a nenhum servidor.