Finished.
Table dimensions plus twice the chosen drop give the outer size you want after the hems are complete.
TABLECLOTH MATH · BEFORE THE FIRST CUT
Start with your table and the overhang you want. See the finished cloth size, hem allowance and a raw cut size that accounts for your expected fabric shrinkage.
Rectangle + circlecm + inchesFree, no accountTHREE SIZES, THREE DIFFERENT JOBS
Table dimensions plus twice the chosen drop give the outer size you want after the hems are complete.
Add the full hem allowance at both opposing edges. This is the fabric size after shrinkage, before hemming.
Divide by the fraction expected to remain after shrinkage. A 5% loss needs division by 0.95, rather than adding 5%.