Plan your convivium in sestertii — with modern USD equivalent
Roman dining, or the convivium, was a cornerstone of social and political life. Elite Romans hosted elaborate cena (dinner) events in their triclinium (dining room), reclining on couches arranged around low tables. Prices are drawn from Diocletian's Edict on Maximum Prices (301 AD) and earlier sources like Pliny the Elder and Cato's De Agri Cultura. A common soldier earned roughly 1,200 sestertii per year; a modest loaf of bread cost 2 sestertii; a pound of pork, 12 sestertii. The most lavish banquets, such as Lucullus's legendary feasts, could cost hundreds of thousands of sestertii — roughly millions in today's dollars.
| Item | Qty (total) | Unit Price (HS) | Subtotal (HS) |
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Enter the number of guests, select a social class tier, and adjust the number of courses using the slider. Then specify how many librae (Roman pounds ≈ 327g) of each food category each guest will consume, plus wine in heminae (half-pint units). Hit Calculate Feast Cost to see the total in sestertii, denarii, aurei, and modern USD — along with a full itemized breakdown.
The feast class multiplier adjusts prices for ingredient quality: a Patrician selects exotic spices, imported fish, and aged Falernian wine, while a Plebeian makes do with local posca and salt-preserved pork.
Roman dining wasn't just about food — it was power, politics, and social theatre. A senator hosting a lavish convivium was signaling status as clearly as a modern executive chartering a private jet. Understanding the cost of these feasts reveals astonishing economic inequalities: a legionary earned about 1,200 sestertii per year (roughly $18,000 today), yet Apicius — Rome's most famous foodie — reportedly spent 100 million sestertii on fine dining over his lifetime and poisoned himself when his fortune fell to a "mere" 10 million because he couldn't face eating modestly.
These calculations help historians, educators, writers, game designers, and history enthusiasts understand Roman social stratification, the economics of the ancient world, and why lavish feasting was so politically important. A triumphal general might host 10,000 citizens at public expense — that's a calculation worth making.
Prices are drawn from Diocletian's Edictum de Pretiis (301 AD) and earlier Republican sources, adjusted for typical mid-Empire prices (1st–2nd century AD):
The USD conversion uses a grain-price parity method: 1 modius of wheat (≈6.5 kg) cost roughly 7–10 sestertii in the mid-Empire, equivalent to roughly $10–15 in modern grain prices, giving approximately $1.50 per sestertius.
Rome used a multi-tier coinage system. The base coin was the as (copper). Four asses made one sestertius (brass). Four sestertii made one denarius (silver). Twenty-five denarii (100 sestertii) made one aureus (gold). Prices were typically quoted in sestertii for everyday transactions and in denarii for wages and larger purchases.
Converting ancient currencies to modern values is inherently imprecise — economists use several methods including silver content, grain price parity, and wage parity, which produce wildly different results. This tool uses grain-price parity (≈$1.50 per sestertius), which many historians consider the most meaningful for everyday goods. The value is best understood as a rough order-of-magnitude comparison, not a precise exchange rate.
Several foods competed for this title. Silphium, an extinct herb from Cyrene, was literally worth its weight in silver before disappearing entirely. Premium garum from Spain could cost 500 sestertii per amphora. Rare fish like the mullus (red mullet) could sell for 1,000+ sestertii each. Pliny the Elder wrote in horror about Romans paying more for a fish than for a cook.
A formal Roman dinner had three main parts: the gustatio (appetizers: olives, eggs, salted fish, vegetables with garum), the primae mensae (main courses: meat, fish, elaborate dishes), and the secundae mensae (dessert: fruit, nuts, honey cakes, sweet wine). The full nine-course extravaganza was an aristocratic display of excess — Apicius's cookbook describes dishes requiring hundreds of individual ingredients.