Mass Calculator

Calculate mass, weight, density, and volume relationships. Convert between different mass units and understand the fundamental physics concepts.

Mass Calculation

Results

1
kg
Weight on Earth
9.81 N
Weight on Moon
1.62 N

Unit Conversions

1 kg
1000 g
2.205 lb
35.274 oz
0.001 metric tons
0.157 stones

Material Analysis

Density:1000 kg/m³
Volume:0.001 m³
Specific Gravity:1
Similar Materials:
Water

How to Use the Mass Calculator

Step-by-Step Instructions

  1. Select your calculation method from the dropdown menu
  2. Enter the required values in the input fields
  3. Choose appropriate units for each measurement
  4. View the calculated mass and additional information
  5. Use quick presets for common materials and scenarios

Calculation Methods

  • Density & Volume: Mass = Density × Volume
  • Weight & Gravity: Mass = Weight ÷ Gravity
  • Force & Acceleration: Mass = Force ÷ Acceleration
  • Unit Conversion: Convert between mass units

Physics Formulas and Concepts

Fundamental Formulas

Mass from Density:
m = ρ × V
Where m = mass, ρ = density, V = volume
Mass from Weight:
m = W ÷ g
Where m = mass, W = weight, g = gravitational acceleration
Newton's Second Law:
m = F ÷ a
Where m = mass, F = force, a = acceleration

Key Concepts

Mass vs Weight: Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.
Density: The amount of mass per unit volume, typically measured in kg/m³ or g/cm³.
Specific Gravity: The ratio of a material's density to the density of water (1000 kg/m³).

Example Calculations

Example 1: Water Mass

Given: 1 liter of water

Density of water: 1000 kg/m³ (1 g/cm³)

Volume: 1 L = 0.001 m³

Calculation: m = 1000 × 0.001 = 1 kg

Result: 1 liter of water has a mass of 1 kilogram

Example 2: Steel Block

Given: Steel block 10cm × 10cm × 10cm

Density of steel: 7850 kg/m³

Volume: 0.1³ = 0.001 m³

Calculation: m = 7850 × 0.001 = 7.85 kg

Result: The steel block has a mass of 7.85 kilograms

Frequently Asked Questions

What's the difference between mass and weight?

Mass is the amount of matter in an object and remains constant regardless of location. Weight is the force exerted on that mass by gravity and varies depending on gravitational field strength.

How do I convert between different mass units?

Use the unit conversion method in the calculator. Common conversions include: 1 kg = 1000 g = 2.20462 lb = 35.274 oz. The calculator handles all conversions automatically.

Why does the same object weigh less on the Moon?

The Moon's gravitational acceleration is about 1/6th of Earth's (1.62 m/s² vs 9.81 m/s²). Since weight = mass × gravity, the same mass will have less weight on the Moon.

How accurate are density-based mass calculations?

Accuracy depends on the precision of density and volume measurements. Material density can vary due to temperature, pressure, and composition, so results are estimates for typical conditions.