| Formula: |
| Bond = X (374 / ) = lbs |
| Cover = X (520 / ) = lbs |
| Bristol = X (641.25 / ) = lbs |
| Index = X (777.75 / ) = lbs |
| Tag = X (864 / ) = lbs |
| Text = X (950 / ) = lbs |
| gsm. to lbs. |
| Bond = ( X 374) / 1405.5 = lbs |
| Cover = ( X 520) / 1405.5 = lbs |
| Bristol = ( X 641.25) / 1405.5 = lbs |
| Index = ( X 777.75) / 1405.5 = lbs |
| Tag = ( X 864) / 1405.5 = lbs |
| Text = ( X 950) / 1405.5 = lbs |
| lbs. to gsm. |
| Bond = ( X 1405.5) / 374 = gsm |
| Cover = ( X 1405.5) / 520 = gsm |
| Bristol = ( X 1405.5) / 641.25 = gsm |
| Index = ( X 1405.5) / 777.75 = gsm |
| Tag = ( X 1405.5) / 864 = gsm |
| Text = ( X 1405.5) / 950 = gsm |
