Grams and kilograms are the metric weights a child meets on food packets and a kitchen scale. These free printable sheets practice converting between them — a thousand grams to the kilogram, every step a power of ten.
A kilogram is a thousand grams, so converting mass is the same place-value shift as length, one factor further along: 2 kg is 2000 g, 3500 g is 3.5 kg. To a smaller unit multiply, to a larger unit divide, and the amounts stay whole or half so the decision is the lesson, not the sum.
Why this sheet works
Both directions turn up on every page, because always multiplying or always dividing is exactly the habit the topic has to break. Each question is a single conversion, at a size a child can reason about against something real — a bag of flour, a small child — rather than an abstract string of zeros.
How this one works
One question from this sheet, worked through a step at a time.
4.5 kg = ? g
kg → gsmaller unit, bigger number
1 kg =1000 g
4.5 × 1000 =4500
4500 g
One g is smaller than one kg, and it takes MORE of a small thing to make the same amount. So the number has to get bigger — which means multiplying.
There are 1000 g in one kg, so that is the number to multiply by.
4.5 × 1000 = 4500, so 4.5 kg is 4500 g. Check the direction held: the number got bigger, which is what a smaller unit does.
