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pH Calculator

⚗️pH Calculator

H⁺ concentration (mol/L)

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Detailed Guide Coming Soon

We're working on a comprehensive educational guide for the pH Calculator in your language. The content below is shown in English.

Vad är pH Calculator?

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pH is a logarithmic scale measuring the acidity or alkalinity of a solution, ranging from 0 (highly acidic) to 14 (highly alkaline), with 7 being neutral (pure water at 25°C). Each unit represents a 10× change in hydrogen ion concentration.

Calkulon makes complex calculations simple — built for students and everyday problem-solvers.

Formel

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f(x)pH = −log₁₀[H⁺] where [H⁺] is the hydrogen ion concentration in mol/L

Variabelbeskrivning

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Symbol	Namn	Enhet	Beskrivning
H	10^(−pH)	—	10^(−pH)
L	L value	—	Variable used in the calculation

Hur man pH Calculator

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1pH = −log₁₀[H⁺] where [H⁺] is the hydrogen ion concentration in mol/L
2[H⁺] = 10^(−pH)
3pOH = 14 − pH (at 25°C)
4Acidic: pH < 7 | Neutral: pH = 7 | Alkaline (basic): pH > 7

Lösta exempel

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Exempel 1

Givet:[H⁺] = 0.001 mol/L

Resultat:pH = 3

−log₁₀(10⁻³) = 3. Acidic (vinegar level)

Exempel 2

Givet:pH = 11

Resultat:[H⁺] = 10⁻¹¹ mol/L

Strongly alkaline — bleach, ammonia

Praktiska tillämpningar

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Academic homework and exam preparation

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Engineering and architecture calculations

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Everyday measurement tasks around the home

Common pH Values

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Substance	pH	Category
Battery acid	0	Extremely acidic
Gastric acid (stomach)	1–2	Very acidic
Vinegar / lemon juice	2–3	Acidic
Coffee	5	Mildly acidic
Pure water	7	Neutral
Baking soda	9	Mildly alkaline
Bleach	12	Strongly alkaline

Vanliga frågor

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What is Ph?

How accurate is the Ph calculator?

The calculator uses the standard published formula for ph. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

What units does the Ph calculator use?

This calculator works with inches, Celsius. You can enter values in the units shown — the calculator handles all conversions internally.

What formula does the Ph calculator use?

The core formula is: pH = −log₁₀[H⁺] where [H⁺] is the hydrogen ion concentration in mol/L. Each step in the calculation is shown so you can verify the result manually.

Referenser

Endast i informationssyfte. Detta verktyg ersätter inte professionell medicinsk rådgivning, diagnos eller behandling. Rådgör alltid med kvalificerad sjukvårdspersonal.

Formula-verified for precision

Reviewed October 2026

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