Boiling Water Time Calculator

Calculate the time required for water to boil based on volume and heating power

Input Parameters

Calculation Results

Calculation Formula

Time = (Volume × (100 - Initial Temp) × 4.2) / Heating Power

Where:
Volume - Water volume in liters
Initial Temp - Initial water temperature in °C
4.2 - Specific heat capacity of water (J/g°C)
Heating Power - Power in Watts

Boiling Time

-- minutes

Boiling Time (approximate)

-- minutes

Boiling Water Time Calculator Usage Guide

Learn how to use the calculator and understand its underlying principles

How to Use This Calculator

  1. Enter the volume of water you want to boil in liters (e.g., 1 for 1 liter, 2 for 2 liters).
  2. Input the heating power of your appliance in watts (e.g., 1500W for a standard microwave, 2000W for an electric kettle).
  3. Specify the initial temperature of the water in °C (e.g., room temperature is about 20-25°C).
  4. Click the "Calculate" button to see the estimated boiling time.

Understanding the Formula

The calculator uses the following formula to estimate boiling time:

Time (seconds) = (Volume × (100 - Initial Temp) × 4.2) / Heating Power

Where:

  • Volume - Amount of water in liters
  • Initial Temp - Starting temperature of water in °C
  • 4.2 - Specific heat capacity of water (J/g°C)
  • Heating Power - Power of the heating element in watts

Important Notes

This calculator provides an estimate based on theoretical calculations. Actual boiling time may vary due to:

  • Appliance efficiency
  • Container material and size
  • Room temperature and ambient conditions
  • Water purity and mineral content

The "Boiling Time" shows the theoretical time required to heat the water to boiling point, while the "Boiling Time (approximate)" includes an additional 5 minutes to account for the actual boiling process.