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Garage Door Spring Calculator

Enter your spring id (inside diameter), wire size (wire diameter) and length of the spring and it will calculate the following.

Max Turns
IPPT: Inch Pounds Per Turn. Force spring exerts per 1 turn of the spring
Active coils
Total coils
Weight: Total door weight spring can hold
Cycles

To calculate replacement of your current spring, use the replaceent tab and enter the specs of the spring with which you want to replace your current or mismatched springs.

Current

Springs

1 2 3 4


Spring ID (in.)	WIRE SIZE(in.)	LENGTH(in.)

STATS


Max Turns	IPPT	Active Coils

Total Coils	Weight (lbs.)	Cycles

Mismatched

Springs

1 2 3 4

		.
Spring ID (in.)	WIRE SIZE(in.)	LENGTH(in.)

STATS


Max Turns	IPPT	Active Coils

Total Coils	Weight (lbs.)	Cycles

Springs	Minimum Door Width
1
2
3
4