Subathon Planner & Calculator

Plan your Twitch subathon event. Calculate time additions, estimate total stream duration, project earnings, and get safety recommendations for marathon streaming.

Base Timer Settings

Initial stream duration before contributions
Optional safety cap (0 = no cap)

Time Additions Per Contribution

Minutes added
Minutes added
Minutes added
Minutes added
Minutes added
Minutes added
Minutes added (optional)

Expected Activity (Per Day)

New subs + gifted per day
Per day
Per day
Per day
Total bits per day
Total $ per day
Affects revenue share
Per day (if adding time for follows)

Your Subathon Projections

Estimated Total Duration
-
With expected activity
Estimated Earnings
-
Your share after Twitch
Time Added Per Day
-
From contributions
Stream Sustainability
-
Activity vs timer

Stream Duration Visualization

0 hours
0h 24h 48h 72h 96h+

Time & Revenue Breakdown

Source Quantity Time Added Revenue (Your Share)

Scenario Analysis

Conservative (50% Activity)

-

If activity is lower than expected

Expected (100% Activity)

-

Based on your estimates

Optimistic (150% Activity)

-

If you exceed expectations

Health & Safety Recommendations

Important Considerations

These projections are estimates based on consistent activity. Real subathons experience variable engagement with peaks during prime hours and lulls during off-hours. Always prioritize your health, have moderators ready, and consider using a timer cap to ensure the event remains manageable.

Understanding Subathons

A subathon (subscription marathon) is a streaming event where viewer contributions extend the stream duration. Every subscription, Bits donation, or cash donation adds time to a countdown timer, potentially creating marathon streams that last days or even weeks. According to TwitchTracker's platform statistics, subathons have become increasingly popular as a community engagement and revenue generation strategy.

The format was popularized by streamers like Ludwig, whose 31-day subathon in March 2021 broke records and demonstrated the format's potential. Since then, subathons have become a staple event type for streamers of all sizes looking to boost engagement and create memorable community experiences.

How Subathons Work

The basic mechanics involve:

  • Base Timer: The stream starts with an initial countdown (typically 12-24 hours)
  • Time Additions: Each contribution type adds a set amount of time to the timer
  • Countdown Rules: When the timer reaches zero, the stream ends
  • Timer Cap (Optional): A maximum limit to prevent indefinite streams

Popular timer software options include Streamlabs, which offers built-in subathon timer widgets that automatically connect to your Twitch account and track contributions in real-time.

Setting Time Addition Rates

Finding the right balance for time additions is crucial. Too generous and your stream becomes unmanageable; too stingy and viewers feel their contributions don't matter.

Common Time Addition Configurations

Contribution Type Conservative Moderate Aggressive
Tier 1 Sub ($4.99) 2-3 minutes 5 minutes 10+ minutes
Tier 2 Sub ($9.99) 5 minutes 10 minutes 20+ minutes
Tier 3 Sub ($24.99) 10 minutes 25 minutes 60+ minutes
100 Bits ($1.40) 30 seconds 1 minute 2+ minutes
$1 Donation 30 seconds 1 minute 2+ minutes

Your choice depends on your channel size and goals. Smaller streamers often use more aggressive rates to make the event exciting, while larger streamers need conservative rates to avoid multi-week streams.

The Sustainability Formula

A sustainable subathon occurs when daily time additions roughly equal 24 hours. This creates a "steady state" where the stream continues indefinitely at current activity levels:

  • Time added per day < 24 hours: Timer will eventually run out
  • Time added per day = 24 hours: Steady state - stream continues at constant rate
  • Time added per day > 24 hours: Timer grows indefinitely (use a cap!)

For detailed information on subscription revenue and Twitch's revenue sharing model, see our complete guide to Twitch subscriptions.

Revenue Expectations

Subathons can be significant revenue events, but understanding Twitch's revenue share is essential for accurate projections. According to Twitch's official Partner information:

  • Affiliates: 50% of subscription revenue
  • Partners: 50-70% depending on contract
  • Partner Plus: 70% of subscription revenue
  • Bits: Streamers receive $0.01 per Bit (fixed rate)
  • Donations: Varies by processor (typically 2-5% fees)

For a detailed breakdown of all Twitch monetization options, see our monetization strategy guide. You can also use our Subscription Revenue Calculator to estimate your regular stream earnings.

Health and Safety Considerations

Marathon streaming poses real health risks. The CDC recommends adults get 7-9 hours of sleep per night, and extended wakefulness impairs cognitive function similar to alcohol intoxication.

Critical Health Reminders

Sleep deprivation after 24+ hours causes impaired judgment, slowed reaction times, and microsleeps. Streamers have experienced serious health consequences from extended streaming. Always prioritize your wellbeing over content.

Best Practices for Safe Subathons

  • Set a Timer Cap: 48-72 hours is commonly used to ensure the event ends
  • Schedule Sleep Breaks: Plan 4-8 hour sleep periods even if the timer continues
  • Stay Hydrated: Keep water nearby and drink regularly
  • Eat Regular Meals: Don't skip meals during the stream
  • Have Moderators Ready: 24/7 mod coverage is essential
  • Use "Sleep Streams": Let the stream continue while you rest (camera off or sleep cam)
  • Know Your Limits: End the stream if you feel unwell

Popular Subathon Formats

Classic Countdown

The standard format where the timer counts down and contributions add time. When it hits zero, the stream ends. This creates urgency and encourages contributions to "save" the stream.

Uncapped Subathon

No maximum timer limit - the stream continues as long as contributions keep coming. This format requires careful planning and sleep rotation strategies.

Capped Subathon

A maximum timer limit ensures the event ends within a set timeframe (e.g., 72 hours max). This is safer and more predictable for planning purposes.

Daily Reset

The timer resets each day to a base amount. This creates multiple "mini-events" within a longer streaming period and ensures natural break points.

Frequently Asked Questions

How long do subathons typically last?

Small to medium streamers often see 24-72 hour subathons. Larger streamers can extend to weeks if uncapped. Ludwig's record 31-day subathon is an extreme example that required extensive planning and support.

What equipment do I need for a subathon?

Beyond standard streaming gear, consider: backup internet connection, UPS battery backup, comfortable seating/sleeping area on camera, and a reliable subathon timer widget. Our stream overlays guide covers timer widgets and other essential overlay elements.

Should I add time for follows?

Follow-based time additions are controversial. They can be gamed with fake accounts and don't generate direct revenue. Most successful subathons focus on paid contributions (subs, bits, donations) for time additions.

How do I handle sleep during a subathon?

Common approaches include: sleep streams where viewers watch you sleep, "Just Chatting" intermissions with moderators, or pausing the timer during scheduled breaks. Communicate your approach clearly to viewers.

What's a good starting timer for beginners?

Start conservatively with 8-12 hours. This gives enough runway to build momentum while not overwhelming you if contributions are slower than expected. You can always do longer subathons once you've learned from your first.