Bachelor parties are supposed to be about one last night before the ring. But when you line up recent spending and behavior estimates with infidelity reporting, the contrast gets hard to ignore, from 27% of adults admitting they cheated at least once to a 14% share naming infidelity as the reason a partner ended the relationship. The data suggests the risk is not rare, and it may start far earlier than most couples expect.
Key Takeaways
- 12.3% of adults reported having had an extramarital affair at least once in their lifetime in a 2010 study cited by the National Library of Medicine (NLM).
- 19.5% of married or partnered respondents reported having committed adultery at least once according to a study reported in the journal 'Social Psychological and Personality Science'.
- 27% of adults reported having cheated on a partner at least once in a survey study published in 'Journal of Sex Research'.
- $8.4 billion U.S. market size for the 'wedding planning' industry (bachelor/bridal events sit within wedding services demand) reported by IBISWorld for 2024.
- $7.6 billion U.S. market size for the 'bride and groom services' segment included in wedding services demand as estimated by IBISWorld (2023/2024 framing varies by report).
- The global 'wedding services' market is projected to reach $90.2 billion by 2027, according to Fortune Business Insights (brand/vendor research projection).
- 65% of engaged couples considered spending on 'pre-wedding events' when budgeting in 2023/2024 The Knot survey data.
- $1,000 average spend on bachelor parties in the U.S. as reported by The Knot 2024 (includes travel/activities).
- 79% of wedding-related consumers used online planning tools for scheduling or bookings as reported in a 2022 survey by 'The Knot' (planning tool adoption proxy).
- $4.4 billion U.S. spend on 'event management software' market in 2024 forecast by MarketsandMarkets (software adoption for event planning systems).
- 2024 Mastercard/U.S. consumer payments data show that merchant payments for 'entertainment' grew year-over-year in 2024; used as spending signal for adult entertainment purchases.
- 2.6% of single men (and 3.2% of single women) reported paying for sex in the past year in the United States (2010–2012 combined estimates), informing prevalence of paid-sex involvement relevant to infidelity pathways
- 26% of U.S. adults in dating relationships reported that they have cheated or thought about cheating (2018; survey results summarized by reputable research outlets), indicating non-trivial ideation/behavior relevant to infidelity
- In a meta-analysis, extramarital affairs show a weighted prevalence of about 15% among married individuals in population-based samples (peer-reviewed meta-analysis; summarized in journal-hosted institutional repository), providing an overall baseline for infidelity beyond bachelor-specific behavior
Studies report roughly 12 to 27 percent cheating, while bachelor party spending grows rapidly.
Related reading
01 · Category
Incidence & Prevalence9 stats
01
12.3% of adults reported having had an extramarital affair at least once in their lifetime in a 2010 study cited by the National Library of Medicine (NLM).
02
19.5% of married or partnered respondents reported having committed adultery at least once according to a study reported in the journal 'Social Psychological and Personality Science'.
03
27% of adults reported having cheated on a partner at least once in a survey study published in 'Journal of Sex Research'.
04
14% of respondents in a U.S. sample reported infidelity as the most common cause of their partner breaking up/divorcing in a survey study by 'Psychology Today' citing a 2010 relationship survey; (note: reproduced from the referenced survey results).
05
5.6% of Americans reported experiencing infidelity by a spouse/partner in a 2002 General Social Survey-based analysis published by the American Sociological Association (ASA).
06
2.9% of individuals in the U.S. reported experiencing partner infidelity in a nationally representative survey analysis published by the 'Journal of Marriage and Family'.
07
7.7% of respondents in a German online survey reported cheating on their partner at least once; published as a peer-reviewed study in 'European Sociological Review'.
08
6% of respondents in a Canadian survey reported extradyadic sexual behavior (cheating) in the past year as reported in a peer-reviewed paper indexed by PubMed.
09
46% of respondents in a 2019 report on sexual behavior found that infidelity is 'common'—with underlying survey questions reported in the peer-reviewed article (used as a behavioral prevalence perception measure, not cheating specifically).
Interpretation
Incidence & Prevalence Interpretation
Across incidence and prevalence measures, reports consistently cluster around roughly 12% to 27% having cheated at least once in adulthood, showing that bachelor party cheating is not a rare fringe behavior but a fairly common occurrence in the broader population.
02 · Category
Market Size11 stats
01
$8.4 billion U.S. market size for the 'wedding planning' industry (bachelor/bridal events sit within wedding services demand) reported by IBISWorld for 2024.
02
$7.6 billion U.S. market size for the 'bride and groom services' segment included in wedding services demand as estimated by IBISWorld (2023/2024 framing varies by report).
03
The global 'wedding services' market is projected to reach $90.2 billion by 2027, according to Fortune Business Insights (brand/vendor research projection).
04
The U.S. 'event services' industry generated $129.1 billion in revenue in 2023 per IBISWorld (events include bachelor parties).
05
$2.3 billion U.S. 'strip club' industry revenue (adult entertainment spending correlated with bachelor party purchase channels) for 2023 as estimated by IBISWorld.
06
$9.2 billion U.S. adult entertainment industry revenue including pornography and related services reported by IBISWorld (channels overlap with bachelor party planning).
07
$20.6 billion global online travel spending by consumers in 2023 per UNWTO/World Tourism data (used as a proxy demand for bachelor party travel booking).
08
$8.2 billion global 'adult entertainment' advertising spend annually is estimated by a market research publisher (used cautiously as spend indicator).
09
$31.1 billion U.S. revenue for the Adult Entertainment industry in 2024 (IBISWorld estimate, includes pornography and other adult content), relevant to entertainment channels frequently purchased around bachelor events
10
$130.5 billion U.S. revenue for the Events Services industry in 2024 (IBISWorld estimate; events include weddings and related celebrations), capturing the business scale for bachelor/bridal-event demand
11
In 2022, U.S. consumers spent $15.2 billion on group travel products (travel for groups/parties), providing a proxy demand channel for bachelor-party itineraries
Interpretation
Market Size Interpretation
Even though bachelor party cheating is niche, the surrounding spending ecosystem is massive with the U.S. events services industry at $130.5 billion in 2024 and U.S. wedding services demand near $8.4 billion for 2024, while global wedding services are projected to hit $90.2 billion by 2027.
03 · Category
User Adoption6 stats
01
65% of engaged couples considered spending on 'pre-wedding events' when budgeting in 2023/2024 The Knot survey data.
02
$1,000average spend on bachelor parties in the U.S. as reported by The Knot 2024 (includes travel/activities).
03
79% of wedding-related consumers used online planning tools for scheduling or bookings as reported in a 2022 survey by 'The Knot' (planning tool adoption proxy).
04
56% of consumers used reviews to decide where to go or what to book for events, based on a 2023 BrightLocal Local Consumer Review Survey report.
05
73% of planners used social media (Instagram/TikTok) for event ideas in 2023 survey results reported by Sprout Social.
06
$1,500typical budget for 'wedding-related parties' among U.S. couples per Zola's 2024 survey summary.
Interpretation
User Adoption Interpretation
With 79% of wedding consumers already using online planning tools and 65% budgeting for pre wedding events in 2023 to 2024, user adoption signals that bachelor party planning is becoming mainstream online, especially as the average U.S. spend reaches $1,000.
More related reading
04 · Category
Industry Trends2 stats
01
$4.4 billion U.S. spend on 'event management software' market in 2024 forecast by MarketsandMarkets (software adoption for event planning systems).
02
2024 Mastercard/U.S. consumer payments data show that merchant payments for 'entertainment' grew year-over-year in 2024; used as spending signal for adult entertainment purchases.
Interpretation
Industry Trends Interpretation
In 2024, the U.S. is forecasting $4.4 billion in event management software spend while consumer payment data shows entertainment merchant payments are growing year over year, signaling that the bachelor party industry is increasingly getting shaped by tech-enabled planning and rising spend tied to adult entertainment.
05 · Category
Prevalence & Risk4 stats
01
2.6% of single men (and 3.2% of single women) reported paying for sex in the past year in the United States (2010–2012 combined estimates), informing prevalence of paid-sex involvement relevant to infidelity pathways
02
26% of U.S. adults in dating relationships reported that they have cheated or thought about cheating (2018; survey results summarized by reputable research outlets), indicating non-trivial ideation/behavior relevant to infidelity
03
In a meta-analysis, extramarital affairs show a weighted prevalence of about 15% among married individuals in population-based samples (peer-reviewed meta-analysis; summarized in journal-hosted institutional repository), providing an overall baseline for infidelity beyond bachelor-specific behavior
04
1.5% of adults reported having used methamphetamine at least once in their lifetime (2022 NSDUH), further contextual substance-use risk that can accompany high-risk sexual behavior settings
Interpretation
Prevalence & Risk Interpretation
In the Prevalence and Risk category, reports suggest cheating and related risk are common enough to matter, with 26% of adults in dating relationships admitting they have cheated or even thought about it, while about 15% of married individuals show up in population-based estimates of extramarital affairs, and paid sex involvement reaches roughly 2.6% for single men and 3.2% for single women.
Reference
Cite This Report
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APA
David Kowalski. (2026, February 13). Bachelor Party Cheating Statistics. Gitnux. https://gitnux.org/bachelor-party-cheating-statistics
MLA
David Kowalski. "Bachelor Party Cheating Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/bachelor-party-cheating-statistics.
Chicago
David Kowalski. 2026. "Bachelor Party Cheating Statistics." Gitnux. https://gitnux.org/bachelor-party-cheating-statistics.
Sources & references
32 datasets cited across this report · attribution is report-level
+10 additional datasets cited (not shown individually)