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Enter your committee's size and the roll call to see whether the chair can open debate, whether a vote can be taken, and exactly how many votes a motion or draft resolution needs to pass or to be blocked. Every Model UN (MUN) number comes with its working, so you can check it against your rules of procedure or settle a point of order from the floor. Free, no signup, and it runs in your browser.
Every delegation assigned to the committee, present or not (up to 999).
Delegations that answered "present" or "present and voting".
Optional. Only affects substantive votes. Leave at 0 if unsure.
30 of 40 members present. Debate can open and votes can be taken.
Enough for the chair to open the session and let debate proceed.
14needed · 30 present
16 delegations could leave before quorum is lost.
Rule: at least one third of the members. 40 × 1/3 ≈ 13.33, rounded up to 14
Needed before a decision, such as a vote on a motion or resolution.
21needed · 30 present
9 delegations could leave before quorum is lost.
Rule: a majority of the members (more than half). 40 ÷ 2 = 20, plus 1 = 21
A majority means more than half, so a tie fails. “No to block” is the number of no votes that defeats the vote when every counted delegation votes.
| Vote | Counted | Yes to pass | No to block |
|---|---|---|---|
| Procedural: simple majorityMost motions, such as a moderated caucus. Counted: everyone present.30 ÷ 2 = 15, plus 1 = 16 | 30 | 16 | 15 |
| Procedural: two thirdsMotions that limit debate, such as closure. Counted: everyone present.30 × 2/3 = 20 | 30 | 20 | 11 |
| Substantive: simple majorityDraft resolutions and amendments. Counted: yes + no, abstentions left out.30 ÷ 2 = 15, plus 1 = 16 | 30 | 16 | 15 |
| Substantive: two thirdsWhere your rules require two thirds for a resolution. Abstentions left out.30 × 2/3 = 20 | 30 | 20 | 11 |
Type the number of delegations assigned to the committee, whether or not they are in the room. This is the base most rules measure quorum against. A double delegation counts as one member.
Type how many delegations answered "present" or "present and voting". Update it after every break and whenever a late delegation joins.
The defaults are one third of the members to open debate and a majority of the members to take a vote. If your rules of procedure say something different, pick another fraction or type a custom one.
On substantive votes, abstentions usually leave the count. Enter how many delegations you expect to abstain to see how many yes votes a draft resolution or amendment really needs.
Each quorum shows whether it is met and by how much. The vote table shows the yes votes to pass and the no votes to block for simple-majority and two-thirds votes, with the arithmetic behind every number.
Every session starts with roll call. The chair reads each member of the committee and the delegation answers “present” or “present and voting”. That count decides two things: whether there is a quorum, and what every vote in the session is measured against.
Many rules of procedure set two quorums. The lower one lets the chair open the session and let debate proceed. The higher one is needed before the committee takes a decision, such as a vote on a motion or a draft resolution. The UN General Assembly's own rules work this way, with one third of the members to open a plenary meeting and a majority of the members for any decision, and the National Model United Nations (NMUN) rules use the same split. Your conference may differ, which is why both fractions are adjustable above.
Quorum is measured against the whole committee, but votes are measured against the room. On a procedural motion, everyone present votes. On a substantive vote, such as a draft resolution or an amendment, abstentions are usually left out, so the bar moves with the tally. Delegations come and go during a long session, so take the count again after every break.
A General Assembly committee has 40 member delegations. After lunch, 26 answer roll call, and 4 say they will abstain on the draft resolution. Using one third to open debate and a majority to vote:
If 6 delegations leave, the committee drops below the quorum to vote and can keep debating but cannot vote until they return.
Quorum using one third to open debate and a majority to vote, and the vote bars when every member is present and voting.
| Members | Open debate | Take a vote | Simple majority | Two thirds |
|---|---|---|---|---|
| 10 | 4 | 6 | 6 | 7 |
| 15 | 5 | 8 | 8 | 10 |
| 20 | 7 | 11 | 11 | 14 |
| 25 | 9 | 13 | 13 | 17 |
| 30 | 10 | 16 | 16 | 20 |
| 40 | 14 | 21 | 21 | 27 |
| 50 | 17 | 26 | 26 | 34 |
| 75 | 25 | 38 | 38 | 50 |
| 100 | 34 | 51 | 51 | 67 |
| 193 | 65 | 97 | 97 | 129 |
Count yes, no and abstain live during voting procedure and see whether it carries.
Which motions need a simple majority and which need two thirds, in order of precedence.
Roll call, the speakers list, caucuses, motions and voting procedure, explained.
Once quorum is met, queue delegates and time each speech from one screen.
The calculator tells you how many votes a resolution needs. Model Diplomat can help you find them: research how other delegations have voted on the issue, what their governments have said, and which amendments could bring the undecided on board. The button opens search with a prompt ready for your committee's details. A free account includes 200 searches on day one, then 50 a day.