Hey there, future gardener! 🌱 Today, we’re going to learn about how to change measurements from millimeters (mm) to inches. This is important when you’re planting seeds or building something in your garden and need the right size tools!
Millimeters are a way to measure how long or wide something is, just like inches. If we want to know how many inches are in 400 mm, we follow a simple math rule. There’s a special number we use: 1 inch is equal to 25.4 millimeters.
To find out how many inches are in 400 mm, we can use this formula:
$$
\text{inches} = \frac{\text{millimeters}}{25.4}
$$
When we put 400 mm into our formula, it looks like this:
$$
\text{inches} = \frac{400}{25.4} \approx 15.75 \text{ inches}
$$
So, 400 mm is about 15.75 inches!
Now, you might be wondering what that looks like in real life. Here are some objects that are exactly equal to 400 mm or approximately 15.75 inches:
- A standard ruler used in schools.
- A long-handled garden trowel.
- A large plate used for serving food.
- A basketball hoop’s diameter.
- A small kitchen cutting board.
- The length of a typical pencil (from eraser to tip).
- A shoe size 7 in adult measurements (which often measures around that length).
Next time you’re out in the garden or at home, you can visualize just how long 400 mm is and remember how to turn it into inches! Happy gardening! 🌼
