4 Position DIP Switch Calculator
Enter a decimal value from 0 to 15 to calculate the matching 4-position DIP switch settings. You can also click the visual switches manually to calculate the decimal value.
Click any switch below to toggle it ON or OFF.
How to Use the 4 Position DIP Switch Calculator
Enter a decimal value from 0 to 15 and click Calculate. The calculator will show the corresponding four DIP switch positions.
You can also use the calculator in reverse. Click the visual switches to match the physical configuration on a device, and the decimal, binary, and hexadecimal values will update automatically.
4 Position DIP Switch Binary Values
Each switch represents one binary weight. Add the values of all switches that are ON to calculate the decimal value.
| Switch | Binary Weight | Power of 2 | Binary Position |
|---|---|---|---|
| SW1 | 1 | 2⁰ | LSB |
| SW2 | 2 | 2¹ | Bit 1 |
| SW3 | 4 | 2² | Bit 2 |
| SW4 | 8 | 2³ | MSB |
Example: Decimal 13
Suppose you need to configure decimal value 13.
8 + 4 + 1 = 13
The switches that should be ON are:
SW4 + SW3 + SW1
The 4-bit binary representation is: 1101.
Why Does a 4 Position DIP Switch Go Up to 15?
Four binary switches create 2⁴ = 16 possible combinations.
Because binary counting begins at zero, the decimal range is 0 through 15.
When all four switches are ON:
1 + 2 + 4 + 8 = 15
Common Uses for 4 Position DIP Switches
Four-position DIP switches are often used where a device needs a small number of hardware configuration combinations.
Depending on the equipment, they may be used for device IDs, mode selection, feature settings, communication options, or other hardware configurations.
Frequently Asked Questions
What is a 4-position DIP switch?
A 4-position DIP switch contains four individual ON/OFF switches in one package. They can be used for addresses, modes, or other hardware settings.
What is the maximum value of a 4-position DIP switch?
If all four switches are used as binary bits, the maximum decimal value is 15.
How many combinations are possible with four DIP switches?
Four binary switches provide 16 possible combinations because 2 raised to the fourth power equals 16.
What value does SW1 represent?
In the LSB-first layout used by this calculator, SW1 represents a value of 1.
What value does SW4 represent?
SW4 represents the highest binary weight in this 4-bit layout, which is 8.
How do I calculate the value manually?
Add the values of all switches that are ON. For example, 8 + 4 + 1 gives decimal value 13.
What is the binary value of decimal 13?
Decimal 13 is binary 1101 because the 8, 4, and 1 positions are active.
Can I use the calculator in reverse?
Yes. Click the visual switches to match your physical DIP switch positions. The decimal and binary values update automatically.
Is the physical ON direction always the same?
No. ON direction can vary between switch manufacturers and devices. Check the ON marking on the switch block.
Should I verify the result with the device manual?
Yes. Switch numbering, ON/OFF orientation, bit order, and switch functions can vary depending on the device.