In-Fusion molar ratio calculator

Calculating the optimal amounts of vector and insert to use in the In-Fusion Cloning reaction is easy with our In-Fusion molar ratio calculator—simply provide the size of your insert and vector in base pairs below.

New! 

The In-Fusion molar ratio calculator is now optimized for multi-insert cloning. Simply choose the number of inserts (up to 5). 

 

Vector size (bp):
Number of Inserts:
Insert 1 Size (bp):
Amount of Vector (ng):
Amount of Insert 1 (ng):
 

Notes:

  1. The molar ratio of insert:vector is set to 2:1, as recommend by our In-Fusion Cloning protocol. The molar ratio stays the same with multiple inserts. For example, the molar ratio of two inserts with one vector should be 2:2:1.
  2. The total DNA amount (insert + vector) provided by the calculator is 200 ng, which is optimal for a 10-µl In-Fusion Cloning reaction.
  3. Seamless cloning is not recommended for inserts less than 50 nucleotides.