Work out election vote share instantly with clear inputs, formula shown and shareable results.
Vote share is votes polled as a percentage of total valid votes, excluding rejected ballots. Comparing it with the previous election gives the swing, and comparing it with an even split across all candidates shows how concentrated support is in a fragmented field.
Vote share
Share % = Party votes / Total valid votes x 100
Change
Change = Current share - Previous share
Indicative estimate only. Fees, entitlements, limits and formulas vary by jurisdiction, statute, policy wording and the facts of the case. This is not legal, tax, insurance or financial advice — confirm with a qualified professional or the relevant authority.
Postal votes counted as valid are included; rejected and invalid ballots are excluded from the denominator by convention.
No. In first-past-the-post systems the geographic distribution of votes matters more than the national share.