Pirate Voyage Profit Calculator

Golden Age pirate crews operated under written "articles of agreement," signed by every crew member before a voyage, which set out exactly how captured plunder would be split. Bartholomew Roberts' 1721 articles, one of the best-preserved examples, gave the captain and quartermaster two shares each, the master gunner and boatswain one and a half shares, other named officers one and a quarter shares, and ordinary crewmen one share each. This calculator uses that same real share structure rather than an invented fantasy system.

"No prey, no pay" meant plunder was the only compensation a pirate crew received — there was no fixed wage. If a voyage captured nothing, the crew earned nothing for that stretch of sailing, full stop. This arrangement aligned everyone's incentives directly with the voyage's success, but it also meant real financial risk for every crew member, which is exactly why this calculator includes a success probability alongside the guaranteed payout — a voyage that would pay handsomely if successful might still have a real chance of paying nothing at all.

Pirate crews deliberately divided authority between an elected captain, who commanded during combat, and an elected quartermaster, who controlled plunder distribution, discipline, and day-to-day decisions the rest of the time — a genuine system of checks and balances that limited any single person's power. Economist Peter T. Leeson has described this structure as more sophisticated than many contemporary naval and merchant hierarchies of the era, and the near-equal share split (both typically received two shares under Roberts' articles) reflected that shared authority directly in the crew's pay structure.

Before the general plunder was divided into shares, pirate articles set aside a fixed compensation fund for crew members injured during the voyage — a genuine precursor to modern workers' compensation. Under commonly cited figures from surviving pirate articles, the loss of a limb was compensated around 800 pieces of eight, while lesser injuries like an eye or a finger received smaller, though still meaningful, payouts. This compensation came off the top of the total plunder before the remaining pot was split into shares, which is exactly how this calculator models it.

In a genuine, well-documented sense, yes. Pirate captains were typically elected by crew vote and could be deposed by majority vote for cowardice, abuse, or incompetence — a stark contrast to naval and merchant ships of the same period, where captains held near-absolute authority appointed from above. Crew councils voted on major decisions, and the articles of agreement functioned as a binding social contract every member had to formally accept before joining a voyage. Historians have noted this as an unusually sophisticated self-governance system for a criminal organization operating entirely outside any national legal framework.

Some documented prizes were enormous. Captain Thomas Tew's 1693 capture reportedly paid each crew member roughly £3,000 — a genuinely life-changing sum for the era. The largest single pirate prize on record may be the 1721 capture of the Portuguese treasure ship Nostra Senhora de Cabo by John Taylor and Olivier La Bouche, which included roughly £500,000 in diamonds and gold plus another £375,000 in cargo. Most real pirate voyages, by contrast, produced far more modest hauls, and many produced nothing at all — the enormous scores that make it into history books were the exception, not the norm.

Privateers operated under government-issued letters of marque, legally authorizing them to attack enemy shipping, and their charters typically assigned larger shares to the ship's owners and officers, with a smaller portion left for the ordinary crew — closer to a conventional business hierarchy. Pirate articles, negotiated collectively by the crew itself with no outside owner to answer to, generally kept the split more egalitarian, with the gap between an ordinary crewman's one share and a captain's two shares far narrower than typical privateer or merchant vessel arrangements of the same era.

No. This calculator is built directly on real, documented historical pirate articles from the Golden Age of Piracy (roughly the 1690s-1730s), particularly the surviving articles of Bartholomew Roberts and John Phillips, not the specific crew structure or rules of any particular franchise, book series, game, or film.