45 inches is about 114 cm, give or take a few cm.

## What is the average height of a person in the US?

The average height of a person in the US is 5’9″.

## What is the average height for a person of a certain gender?

The average height for a man in the US is 5’10”, and the average height for a woman in the US is 5’5″.

## What is the average height for a person of a certain race?

The average height for a white person in the US is 5’10”, for a black person it is 5’7″, and for an asian person it is 5’5″.

## What is the average height for a person in a certain age group?

The average height for a person in the US in their twenties is 5’11”, in their thirties it is 5’10”, in their forties it is 5’9″, and in their fifties it is 5’8″.

## What is the average height for a person in a certain occupation?

The average height for an actor is 5’10”, for a doctor it is 5’11”, and for a teacher it is 5’8″.

## What is the average height for a person in a certain nationality?

The average height for a person from the UK is 5’10”, from Spain it is 5’7″, and from Italy it is 5’5″.

## What is the average height for a person with a certain genetic disorder?

The average height for a person with Down Syndrome is 4’8″.

### What is the height of a desk?

The height of a desk is typically about 30 inches.

### What is the height of a chair?

The height of a chair is typically about 18 inches.

### What is the height of a person?

The height of a person is typically about 5 feet, 6 inches.

### What is the height of a mailbox?

The height of a mailbox is typically about 42 inches.

### What is the height of a stop sign?

The height of a stop sign is typically about 36 inches.