Vote Percentage Calculator

Calculate vote percentages, winner determination, margin of victory, and voter turnout for elections.

Election Results

Winner

Candidate A

45.9% (4,500 votes)

Total Votes9,800
Majority AchievedNo
Margin of Victory1,300 (13.3%)
Voter Turnout65.3%
Votes for Majority401
Swing Votes Needed651

Candidates & Votes

Election Settings

For turnout calculation

Blank or invalid ballots

Total Votes

9,800

Votes cast

Leading

Candidate A

45.9%

Margin

13.3%

1,300 votes

Turnout

65.3%

of 15,000

Detailed Results

RankCandidateVotesPercentageBar
1Candidate A4,50045.92%
2Candidate B3,20032.65%
3Candidate C2,10021.43%
Majority threshold (50%)4,901 votes
401 more votes needed for majority

Vote Distribution

Votes by Candidate

Swing Analysis

Swing to Change Outcome

651 votes

Votes that would need to shift from winner to runner-up

As Percentage of Total

6.64%

Competitive race

To change the outcome: 651 voters would need to switch from Candidate A to Candidate B. This represents 6.64% of total votes cast.

Election Type: Plurality (Most Votes Wins)

In a plurality system, the candidate with the most votes wins, even without a majority. This is the most common system for single-winner elections in many countries.

?How Do You Calculate Vote Percentage?

Vote percentage = (Candidate Votes / Total Votes) x 100. A majority requires >50% of votes. A plurality means the most votes but not necessarily a majority. Margin of victory = Winner's votes - Runner-up's votes (or as percentage). Voter turnout = (Votes Cast / Registered Voters) x 100.

Definition

A vote percentage calculator determines each candidate's share of total votes cast in an election, helping analyze outcomes, determine winners, and understand voting patterns.

Key Facts About Vote Calculations

  • Vote Percentage = (Candidate Votes / Total Votes Cast) x 100
  • Majority requires more than 50% of all votes cast
  • Plurality means the most votes, regardless of majority
  • Margin of victory can be expressed as votes or percentage
  • Voter turnout = (Total Votes Cast / Registered Voters) x 100
  • Votes needed for majority = (Total Votes / 2) + 1 (rounded up)
  • Supermajority typically requires 60%, 66.7%, or 75% of votes
  • Swing = votes needed to change the outcome

Formulas

Vote Percentage

% = (Candidate Votes / Total) x 100

Voter Turnout

% = (Votes Cast / Registered) x 100

Majority Threshold

= (Total Votes / 2) + 1

Swing Votes

= (Winner - Runner-up) / 2 + 1

Frequently Asked Questions

A majority means receiving more than 50% of all votes cast. A plurality means receiving the most votes among all candidates, which could be less than 50% when there are more than two candidates. For example, winning with 35% when opponents get 33% and 32% is a plurality, not a majority.
Vote percentage = (Candidate's Votes / Total Votes Cast) x 100. For example, if a candidate receives 5,000 votes out of 12,000 total, their percentage is (5000/12000) x 100 = 41.67%.
Margin of victory is the difference between the winner's votes and the runner-up's votes. It can be expressed as raw votes or as a percentage of total votes. A larger margin indicates a more decisive victory.
Voter turnout = (Total Votes Cast / Total Registered Voters) x 100. This metric shows civic engagement. High turnout (>60%) indicates strong voter participation; low turnout (<40%) may indicate voter apathy or barriers.
A supermajority is a voting threshold higher than a simple majority (>50%). Common supermajority requirements include 60% (three-fifths), 66.67% (two-thirds), or 75% (three-quarters). Supermajorities are often required for constitutional amendments or special decisions.
Swing is the number of votes that would need to change from the winner to another candidate to alter the outcome. Formula: Swing = (Winner Votes - Runner-up Votes) / 2 + 1. This represents the minimum vote shift needed.
Depending on the election system: (1) Plurality wins - highest vote-getter wins regardless of majority. (2) Runoff - top two candidates face a second election. (3) Instant runoff - ranked-choice votes are redistributed until someone has majority.

Last updated: 2025-01-15