The weight and balance worksheets below are MS Excel spreadsheets. The first page is the table that calculates the weight and CG. Go to the next page (tab at bottom of page) to see how your weight configuration falls in the loading envelope. You can save the spreadsheets, just be aware that if you change anything other than the amount of fuel and the loading weights, it will make the spreadsheet inaccurate. Also, be forewarned that these are not guaranteed. Be sure to doublecheck your loading configuration with the worksheet in the POH.

1973 Piper Seneca I

1985 Piper Archer II N43839

Thanks to Andrew Ramkisson for putting these spreadsheets together.