The Number You Need Before the Script
A producer has a treatment for a contained thriller: 90 pages, 4 locations, 12 speaking roles, no VFX, no stunts. An investor asks for the budget. The script is not written yet. The producer guesses $500,000 based on "similar films." The investor commits. The script gets written. The actual budget comes in at $1.2 million because the treatment did not account for 18 shoot days at a daily crew cost of $15,000, plus 3 weeks of post-production at $8,000 per week, plus a 15 percent contingency. The investor walks. Six months of development time are lost.
A ROM budget prevents this. ROM stands for rough order of magnitude, a term borrowed from construction and engineering project management. In film, a ROM budget is a top-down estimate built from schedule assumptions and daily rate benchmarks, not from a script breakdown. It tells you whether the film is financeable before you spend months writing a screenplay that turns out to cost more than you can raise.
This post covers the ROM budget method: how to estimate shoot days, calculate daily crew costs, apply category percentages, and arrive at a defensible order-of-magnitude number. The 2026 benchmarks come from Celtx's average movie budget analysis, Saturation.io's department breakdown data, and IFTA's 2024 financing survey showing the average independent feature budget at $4.2 million.
How the ROM Budget Method Works
A ROM budget is built from 5 variables that you can estimate from a treatment, not a script:
Page count estimate. A treatment gives you a rough page count target. A feature is 80 to 120 pages. A contained thriller in 4 locations is likely 90 to 100 pages. A character drama with long dialogue scenes is likely 100 to 115 pages. This number drives the schedule.
Shoot day estimate. The number of shoot days is the single biggest budget driver. Every additional day compounds costs across crew, equipment, locations, catering, transport, and insurance. The 2026 benchmarks from Celtx: microbudget indie 10 to 15 shoot days, low-budget feature 18 to 25 shoot days, studio feature 40 to 70+ shoot days. If you have never shot more than 5 pages per day, do not budget for 8. A 90-page script at 5 pages per day needs 18 shoot days.
Daily crew cost. Build a full daily crew cost for everyone required to function safely and professionally: all department heads, assistants, payroll taxes, fringes, and overtime assumptions. A 2026 indie daily crew cost for a 15-person team runs $8,000 to $15,000 per day depending on union status and location. If the daily crew cost feels uncomfortably high, that is usually a sign it is accurate.
Category percentages. The standard film budget splits into four categories: Above the Line (ATL) at 5 to 35 percent, Below the Line Production (BTL) at 40 to 50 percent, Post-Production at 10 to 20 percent, and Other (insurance, bond, contingency) at 5 to 10 percent. These percentages shift based on budget size, union status, and genre. A micro-budget film with all-deferred ATL participants has minimal ATL. A film built around a recognizable cast element has higher ATL.
Contingency. A realistic contingency in 2026 is 10 to 15 percent for indies and 5 to 10 percent for studio-backed projects. Without contingency, problems still happen. You just steal from post-production to fix them.
The ROM formula: shoot days x daily crew cost = core production spend. Add equipment and locations as daily multipliers. Add ATL based on the percentage range. Add post-production at 10 to 20 percent of production. Add contingency at 10 to 15 percent. The result is a defensible order-of-magnitude number, accurate within plus or minus 25 percent.
Three Real-World ROM Budget Scenarios
Scenario 1: Microbudget Indie Feature, $250,000 ROM
Context: A producer has a treatment for a 90-page contained drama in 3 locations with 6 speaking roles. No union. Deferred ATL. ROM estimate: 12 shoot days at 5 pages per day. Daily crew cost for a 10-person non-union team: $5,000 per day (director/DP $800, sound $400, AC $300, gaffer $350, swing $300, HMU $300, 2 PAs $500, equipment $1,550, catering $500). Core production: $60,000. Locations at $500 per day x 12 days: $6,000. ATL (deferred): $10,000. Post-production at 15 percent: $9,000. Insurance and legal: $8,000. Contingency at 15 percent: $13,050. Total ROM: approximately $106,050. With a $250,000 target, the producer has $144,000 of headroom for cast, music licensing, and festival submission costs. The ROM confirms the film is financeable at the microbudget tier.
Scenario 2: Low-Budget Indie Feature, $1.2 Million ROM
Context: A producer has a treatment for a 105-page drama with 8 locations and 15 speaking roles. SAG-AFTRA modified low budget agreement. IATSE non-union crew. ROM estimate: 20 shoot days at 5 pages per day. Daily crew cost for a 20-person team: $12,000 per day. Core production: $240,000. Equipment package at $2,500 per day x 20 days: $50,000. Locations at $1,000 per day x 20 days: $20,000. ATL (director, writer, producer, lead cast at SAG modified rates): $180,000. Post-production at 15 percent: $36,000. Insurance, legal, accounting: $45,000. Contingency at 12 percent: $57,000. Total ROM: approximately $628,000. With a $1.2 million target, the producer has $572,000 for name cast, music, and a completion bond. The ROM confirms the film is financeable at the low-budget tier.
Scenario 3: Mid-Budget Indie Feature, $5 Million ROM
Context: A producer has a treatment for a 110-page thriller with 12 locations, 20 speaking roles, and 2 VFX sequences. Full union (SAG-AFTRA, IATSE, DGA). ROM estimate: 30 shoot days at 4 pages per day. Daily crew cost for a 40-person union team: $35,000 per day. Core production: $1,050,000. Equipment at $5,000 per day x 30 days: $150,000. Locations at $2,500 per day x 30 days: $75,000. ATL at 25 percent: $350,000. Post-production at 18 percent (includes VFX): $189,000. Insurance, legal, bond, accounting: $175,000. Contingency at 10 percent: $114,000. Total ROM: approximately $2,103,000. With a $5 million target, the producer has $2,897,000 for marquee cast, music licensing, and P&A reserve. The ROM confirms the film is financeable at the mid-budget tier.
ROM Budget Tier Comparison
The table below compares ROM budget tiers with 2026 benchmarks. The key column is the daily crew cost, which is the single most accurate predictor of total budget. If your daily crew cost is off by 20 percent, your entire ROM is off by 20 percent.
| Tier | Total Budget Range | Shoot Days | Daily Crew Cost | ATL Percentage | Post Percentage | Contingency | Accuracy Range |
|---|---|---|---|---|---|---|---|
| Microbudget | $100K to $500K | 10 to 15 | $3K to $6K | 5 to 10% | 10 to 15% | 15% | plus or minus 30% |
| Low-budget indie | $500K to $2M | 18 to 25 | $8K to $15K | 10 to 20% | 15 to 20% | 12 to 15% | plus or minus 25% |
| Mid-budget indie | $2M to $10M | 25 to 35 | $25K to $40K | 20 to 30% | 15 to 20% | 10 to 12% | plus or minus 20% |
| Studio feature | $20M+ | 40 to 70+ | $80K+ | 25 to 35% | 20 to 25% | 5 to 10% | plus or minus 15% |
The accuracy range narrows as the budget increases because more variables become known. A microbudget ROM has a wider accuracy range because crew rates, equipment deals, and location arrangements are more variable at that tier.
Step-by-Step: Build Your ROM Budget
- Estimate page count from the treatment. A feature is 80 to 120 pages. Count the scenes described in the treatment and multiply by 1.5 to 2 pages per scene for dialogue, 0.5 to 1 page for action.
- Calculate shoot days. Divide page count by your expected pages-per-day pace. First-time filmmakers should assume 4 to 5 pages per day. Experienced crews can manage 5 to 7. Never assume more than 8. Add 10 percent for weather and contingency days.
- Build the daily crew cost. List every role needed for a safe, professional set. Include department heads, assistants, and a PA. Add equipment rental as a daily line item. Add catering at $15 to $25 per person per day. Multiply by shoot days for core production spend.
- Add locations and transportation. Estimate location fees per day. Add permit costs. Add transportation for company moves. These are daily multipliers that compound with shoot days.
- Apply ATL percentage. For deferred ATL, use 5 to 10 percent. For SAG modified low budget, use 10 to 20 percent. For union films with name cast, use 20 to 30 percent. Multiply by the core production total.
- Add post-production. Use 15 percent of the production total for standard post. Use 18 to 20 percent if the treatment includes VFX or complex sound design.
- Add insurance, legal, and accounting. Use 5 to 8 percent of the total for a standard indie production.
- Add contingency. Use 15 percent for microbudget, 12 to 15 percent for low-budget, 10 to 12 percent for mid-budget. This is not optional. Without it, you will steal from post to fix production problems.
- Compare to available capital. If the ROM exceeds your capital, reduce shoot days, simplify locations, or defer more ATL. Use the Production Schedule Calculator to model different shoot day scenarios and the Crew Size Estimator to right-size your team.
Pro Tips and Common Mistakes
Pro Tip: Build three ROM versions: low, medium, and high. The low version assumes maximum deferrals, minimal locations, and a compressed schedule. The high version assumes union rates, full crew, and a comfortable schedule. Present all three to investors so they can choose the risk level.
Pro Tip: Use the daily rate method as the primary estimation tool, not cost per page. A 2-page dialogue scene in one apartment is not equal to a 2-page exterior night scene with rain effects and 10 speaking roles. Page count benchmarks scale, but daily rate multiplication reflects what the production actually requires.
Pro Tip: The Sundance Institute asks producers to provide "the overall budget number or small budget range" with their application. A ROM budget gives you that number with a defensible methodology behind it, which is more convincing to both Sundance and private investors than a guess.
Common Mistake: Using a cost-per-page shortcut as the budget. The fix: use page count to benchmark scale, then build the budget from daily rates. One page can mean a car chase. Another can mean two people at a kitchen table. The pages are equal in length and nowhere near equal in cost.
Common Mistake: Omitting contingency from the ROM. The fix: always include 10 to 15 percent contingency. Without it, the ROM is not a budget. It is a wish. Investors who see a ROM without contingency know the producer has never gone over schedule.
Common Mistake: Underestimating post-production. The fix: allocate 15 to 20 percent of the production total for post. Post includes picture edit, sound design and mix, music composition and licensing, color grading, and deliverables. If you cannot afford to finish the film, you cannot afford to start it.
FAQ
What is a ROM budget in film production?
ROM stands for rough order of magnitude. It is a top-down budget estimate built from schedule assumptions and daily rate benchmarks, not from a script breakdown. A ROM budget is accurate within plus or minus 20 to 30 percent, which is enough to determine whether a project is financeable before you invest months in writing the script.
How accurate is a ROM budget?
A microbudget ROM is accurate within plus or minus 30 percent. A low-budget indie ROM is accurate within plus or minus 25 percent. A mid-budget ROM is accurate within plus or minus 20 percent. The accuracy improves as more variables become known. The ROM is not a replacement for a line-by-line budget. It is a feasibility test.
When should I build a ROM budget instead of a full budget?
Build a ROM budget when you have a treatment but no script, when an investor asks for a number before the script is written, or when you are deciding between multiple projects and need to compare their financial viability. Once the script is complete, replace the ROM with a bottom-up budget built from a script breakdown and stripboard schedule.
What is the biggest cost driver in a film budget?
Shoot days. Every additional shoot day compounds costs across crew, equipment, locations, catering, transportation, and insurance. Reducing shoot days by rewriting the script to consolidate locations or cut scenes is the single most effective way to reduce a film budget without sacrificing production value.
Related Tools
The Production Schedule Calculator models different shoot day scenarios to test your ROM assumptions. The Crew Size Estimator generates the right crew count for your production scale. The ROI Calculator helps you compare the ROM budget against projected revenue. For deeper reading, see our posts on how to build an indie film budget and budget runs out mid production.
Conclusion
A ROM budget tells you whether a film is financeable before you write the script. Build it from shoot days and daily crew costs, not from guesses about similar films. Apply the standard category percentages, add contingency, and compare the total to available capital. The ROM will be accurate within plus or minus 25 percent, which is enough to make a go or no-go decision. If the ROM exceeds your capital, reduce shoot days, simplify locations, or defer more ATL. Do not cut contingency or post-production. Once the script is complete, replace the ROM with a full bottom-up budget. The number you get before the script is the number that saves you six months of wasted development time. What is the ROM for your current project, and does it fit the money you can actually raise?
