Trim Balance
Trim is the product of weight and distance from the cockpit centre. The index below is the forward sum minus the aft sum, normalised by total weight, so it reads the same on any boat.
Result
Values update as you type. Nothing is sent anywhere.
Worked example
More calculatorsScore a loaded kayak for fore-and-aft balance before launch. The page computes in the browser and does not store inputs. For a printed version, use the matching card in the tools directory.