I think the moon is about 1 / 4 ( One Fourth ) the size of the earth .

Of course it is so much bigger than YOU expected. (not to be rude) And everybody else that tried guessing. Well, The Moon isn't about Earth and Travel, But this will work for me:

Let’s assume you lived before the first person to walk on the Moon. And before we had ever been to space, Hell, Even before the invention of the telescope. Why not go all the way back to before we knew the planets were first formed? You know, back when all you had to go on for knowledge of the sky was your eye.
Some nights, you look up at the sky, and what would you see? Instead of stars, Something might be filling your sky with light pollution. Indeed, the closest astronomical body to Earth is the brightest thing in our night sky. Say Hello to the Moon, Which gets its brilliant light by reflecting it from the Sun.
And let’s say you wanted to know, looking up at that brilliant orb in the night sky, How big it was and how far away it was. While today, We bounce lasers off of a mirror like the Apollo astronauts left on the Moon to figure out its distance, There’s a trick anyone can use to understand the size and distance to the Moon.
First the size. All you need to know to get this is the size of the Earth, which we’ve known since the 3rd Century B.C. To be about 40,000 km in circumference (or about 13,000 km in diameter). Well, that, and the fact that the Sun is farther away than the Moon is. Which is easy. After all, You’ve heard about these:
Solar eclipses! Since the Moon can pass in front of the Sun, that tells us the Sun must be farther away! So we can make an approximation (that, to be fair, is only really good if the Sun is a LOT farther away than the Moon is) That when we see the Earth’s shadow on the Moon, It’s about the size of Earth.
And do we ever see the Earth’s shadow on the Moon?
That’s just what a lunar eclipse is! In fact, we can put together a bunch of images from a partial lunar eclipse, and showcase something spectacular:

Wow! So all you need to figure out the diameter of the Moon is to know the diameter of Earth, And measure what the ratio of Earth’s shadow is to the size of the Moon! If you guess that the Earth is three times bigger, you’re a little low, but if you guess it’s four times bigger, you’re a little high. It turns out that three-and-two-thirds is just about right, and if I divide that circumference of 40,000 km by three-and-two-thirds, I get 10,900 km for the shadow of the Moon, or  3470 km in diameter.
And if I check Wikipedia, it tells me the circumference of the Moon is 10,921 km. Yes, just like that, you can figure out the size of the Moon!
But let’s say you wanted to go farther, and figure out the distance to the Moon. You could do this, too! Take a look at the Moon in the sky:
As long as you know that there are 360 degrees in a circle, you can figure out how many degrees on the sky the Moon takes up! It turns out it’s very close to half-a-degree, which varies depending on whether the Moon is at its closest point to Earth or its farthest.
But if we take the crude “half-a-degree” estimate, we can easily figure out how distant it is to the Moon just by remembering a little tip!
There’s a relationship between the size of the angle, The distance to the Moon, and the diameter of the Moon, Just given by the formula:
Which gives me a distance to the Moon of just under 400,000 km. This stacks up really well to the modern (average) value of 384,403 km, but it gets even better when you realize the Moon’s distance between 363,104 km and 406,696 km.

Pokefreak219 : It's actually about 1/4,000,000 times the size of the Sun comparing.

cop7000 : Three houses? I estimate about 10,000 houses and you were way off by a lot.


haitamchouiekh : Really? I saw it too! But it was the moon, not Venus. That is called a Solar Eclipse when the moon goes in front of the Sun and reflects or bounces. That happened in June or July; Right?


thenumberone : Actually, 9,000 Cheesecakes all lined up. Bigger than you expected to be. :/

udfett : The moon is about two times smaller than Mars and the moon is 1/4 compared to the size of out planet Earth.

Natas : I understand your horrible at math. The moon is about 10,000  houses lined up. Even though the Moon is about 200,000+ Miles away (400,000! Kilometers), It can still be seen. If you look at 20 pies 200,000+miles away (4,000,000+ kilometers), You won't be able to see it.

Using scientific measures, and a super precise scale, I'd say that the moon is over 9000.

But for real, the earth is about four times greater in diameter than the moon.

The moon, or any object, can be measured by diameter or mass. The moon is 3,476 kilometers in diameter. This is small compared to the Earth, which has a diameter of about 12,756 kilometers.
The moon’s mass is about 7.35 X 10 to the 22 power (735 with 20 zeroes after it) kilograms while the Earth weighs 5.97 X 10 to the 24 power (597 with 22 zeroes after it) kilograms.