3.1.13

Calories

Test yourself

Calories

What people call a calorie is technically a kilocalorie. So '1,000 calories' refers to 1,000 kcals.

Illustrative background for Calories and joulesIllustrative background for Calories and joules ?? "content

Calories and joules

  • One kilocalorie is equal to 4.2 kJ or 4,200 J of energy.
Illustrative background for Average male and female intakeIllustrative background for Average male and female intake ?? "content

Average male and female intake

  • The average woman needs 2,000 kcal (8,400 kJ) per day.
  • The average man needs 2,500 kcal (10,500 kJ) per day.

Jump to other topics

1Biology

1.1Cells, Tissues & Organs

1.2Reproduction & Variation

1.3Ecological Relationships & Classification

1.4Digestion & Nutrition

1.5Plants & Photosynthesis

1.6Biological Systems & Processes

2Chemistry

2.1Particles

2.2Chemical Reactions

2.3Atoms, Elements, Compounds

2.4The Periodic Table

2.5Materials & the Earth

2.6Reactivity

2.7Energetics

2.8Properties of Materials

3Physics

3.1Energy

3.2Forces & Motion

3.3Waves

3.4Electricity & Magnetism

3.5Matter

3.6Space Physics

4Thinking Scientifically

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