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✔Here you can determine your frame size bike
✔Everything about the definition frame height bike
✔Plus: Measure the stepsge
Table of contents
Definition: frame height and frame size
Measure the stride length
Calculate frame height
Racing bike / cyclocross / singlespeed
MTB - mountain bike
Trekkingrad / Cross Bike / Fitness Bike
Children's bike
Youth bike
In this article we explain what the frame height or the frame size is and how you can find out your individual frame size for your bike. You can calculate that easily.
The right frame size is very important for you as a cyclist. This makes it easier for you and you can take an ergonomic position on your saddle. That protects your posture.
Definition: frame height and frame size
Measure the stride length
You need a book and a tape measure for the calculation. Then you stand with your back, straight on the wall. It is best to stand there slightly wide, your feet should be about 20 centimeters.
With the book you then go up to your crotch until it is due. The book has to queue on the wall with the vertical side. Then miss from the ground to the highest point in the book. This value in centimeters is your stride length.
Calculate frame height
To calculate your individual frame height you need your stride length. For each bike type there are your own values for calculation, which we now show you.
In case of doubt, if 2 frame sizes fit for you and you are in between, we have the following tips. In principle, very sporty drivers then choose the smaller size and hobby drivers tend to greater size.
Racing bike / cyclocross / singlespeed
For your perfect frame height:
in centimeter: Multipliate your step height times 0.665
in Customs: Multipliate your step height times 0.262
So that it is easier for you, we still have a table here:
| Step length in cm | Frame size in inches | Frame size in cm |
| Under 65 | Measurement | Measurement |
| 65 | 17" | 43cm |
| 70 | 18" | 47cm |
| 75 | 20" | 50cm |
| 80 | 21" | 53cm |
| 85 | 22" | 57cm |
| 90 | 24" | 60cm |
| 95 | 25" | 63cm |
| 100 | 26" | 67cm |
| 105 | 27" | 70cm |
| 110 | 29" | 73cm |
| Over 110 | Measurement | Measurement |
MTB - mountain bike
Whether for Fully / FullSuspension Bike or Hardtail, your perfect frame height:
in centimeter: multiplicate your step height times 0.565
in Customs: Multipliate your step height times 0.223
So that it is easier for you, we still have a table here:
| Step length in cm | Frame size in inches | Frame size in cm |
| Under 65 | Measurement | Measurement |
| 65 | 14" | 37cm |
| 70 | 16" | 40cm |
| 75 | 17" | 42cm |
| 80 | 18" | 45cm |
| 85 | 19" | 48cm |
| 90 | 20" | 51cm |
| 95 | 21" | 54cm |
| 100 | 22" | 57cm |
| 105 | 23" | 59cm |
| 110 | 24" | 62cm |
| Over 110 | Measurement | Measurement |
Trekkingrad / Cross Bike / Fitness Bike
For your perfect frame height:
in centimeter: Multipliate your step height times 0.607
in Customs: Multipliate your step height times 0.239
If you have a suspended seat post, you can deduct 5 centimeters or 2 inches from the calculated frame size.
So that it is easier for you, we still have a table here:
| Step length in cm | Frame size in inches | Frame size in cm |
| Under 65 | Measurement | Measurement |
| 65 | 16" | 39cm |
| 70 | 17" | 42cm |
| 75 | 18" | 46cm |
| 80 | 19" | 49cm |
| 85 | 20" | 52cm |
| 90 | 22" | 55cm |
| 95 | 23" | 58cm |
| 100 | 24" | 61cm |
| 105 | 25" | 64cm |
| 110 | 26" | 67cm |
| Over 110 | Measurement | Measurement |
Citybike / women's bike
For your perfect frame height:
in centimeter: Multipliate your step height times 0.61
in Customs: Multipliate your step height times 0.24
So that it is easier for you, we still have a table here:
| Step length in cm | Frame size in inches | Frame size in cm |
| Under 65 | Measurement | Measurement |
| 65 | 16" | 40cm |
| 70 | 17" | 43cm |
| 75 | 18" | 46cm |
| 80 | 19" | 49cm |
| 85 | 20" | 52cm |
| 90 | 22" | 55cm |
| 95 | 23" | 58cm |
| 100 | 24" | 61cm |
| 105 | 25" | 64cm |
| 110 | 26" | 67cm |
| Over 110 | Measurement | Measurement |
Children's bike
In children under 1.40 meters, you should not assume the frame size, but from the wheel size. To do this, you need the child's height.
The smallest wheel size is 12 inches. This is suitable for small children from 95 cm. From the age of around 3 years old, the children can use their first bike.
At around 13-14 years, when most have reached a size of 140 cm, there is the largest children's bike, with a impeller size of 26 inches. After that, bicycles can be switched to normal adult bicycles.
| Take height of the child | The bicycle wheel size |
| From 95cm | 12" |
| From 100cm | 14" |
| From 105cm | 16" |
| From 110cm | 18" |
| From 120cm | 20" |
| From 135 | 24" |
| From 140cm | 26" |
Youth bike
From about 14 years, with a height of over 1.40 meters, the young people of children's bicycles can switch to adult bikes. To calculate the exact frame size for young people, you need the body size. Or of course the values of the bike types above can also be taken into account.
For an overview and as an stop, this table can be used:
| Body size in cm | Frame size in cm | Frame size in inches |
| 145 - 155cm | 33 - 35 cm | 13 - 14" |
| 155 - 165cm | 35 - 38cm | 14 - 15" |
| 165 - 170cm | 38 - 41cm | 15 - 16" |
| 170- 175cm | 41 - 43cm | 16 - 17" |
| 175 - 180cm | 43 - 46cm | 17 - 18" |
| 180 - 185cm | 46 - 49cm | 18 - 19,5" |
| 185 - 190cm | 49 - 53 cm | 19,5 - 21" |
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FAQ - frequently asked questions about the frame height
How much inch does my bike have?
To find out that you simply measure from the center of the bottom bracket/crank to the top of the seat tube. You then simply divided the value in CM by 2.54 and the result is the frame size in inches.
What frame size do I need?
To find out that is it best to read the whole article?
How do you measure the frame height of the bike?
The frame height is measured from the middle of the bottom bracket to the upper end of the seat tube. Read for more information à blog post?
Which bike for which size?
Which bike size you need for your size depends on the stride length and your other anatomy.
How important is the frame height of the bike?
The right frame height is very important! The frame on your bike is like a foundation of a house. If the foundation does not fit, the rest will not fit perfectly.