Free Service Business Quote Calculator
Stop losing money on your jobs. This 100% free calculator helps plumbers, electricians, caterers, and all service businesses create profitable quotes. It forces you to account for the #1 hidden cost: Monthly Overhead.
1 Enter Job-Specific Details
Start with your hourly labor rate and the estimated hours for this specific job. Add the materials and equipment costs needed.
2 Don't Forget Materials and Equipment
Include all materials for the job, plus any equipment rental, depreciation, or wear-and-tear specific to this project.
3 Calculate Your Monthly Overhead
This is THE cost most service businesses forget! Include rent, insurance, vehicle payments, software, phone bills, and utilities. The calculator will allocate the right portion to this job.
4 Enter Monthly Billable Hours
How many total billable hours does your entire business work per month? For one full-time person, that's about 160 hours. This helps calculate your hourly overhead rate.
5 Set Your Desired Profit Margin
Use the slider to adjust your target profit percentage. Your recommended quote updates instantly, along with a full cost breakdown!
Pro Tip: Most profitable service businesses target 15-25% profit margins. Start there and adjust based on your market and competition!
Who Is This Tool For?
This calculator is built for plumbers, electricians, HVAC technicians, caterers, contractors, and all service-based businesses that quote jobs. If you charge for labor, materials, and need to account for overhead, this tool ensures you're creating profitable quotes that sustain your business.
The Hidden Cost That Kills Service Businesses
The #1 mistake service businesses make is pricing jobs based only on Labor + Materials. They forget Overhead.
Your truck payment, insurance, software, and rent are real costs that must be included in every job quote. If you don't, you're working for free!
How This Tool Calculates Overhead
This calculator uses the "Hourly Overhead Rate" method:
Step 1: Calculate your hourly overhead rate:
Hourly Overhead Rate = Monthly Overhead ÷ Monthly Billable Hours
Step 2: Allocate overhead to this specific job:
Allocated Overhead = Hourly Overhead Rate × Job Duration Hours
Step 3: Calculate total job cost:
Total Cost = Labor + Materials + Equipment + Allocated Overhead
This ensures every quote covers its fair share of the business's fixed costs!
What to Include in "Monthly Business Overhead"
Include all your fixed business costs that are not tied to one specific job:
- Rent or mortgage for office/shop space
- Vehicle payments and maintenance
- Business insurance (liability, workers' comp, vehicle)
- Software subscriptions (CRM, accounting, scheduling)
- Phone and internet bills
- Office utilities (electricity, water, gas)
- Marketing and advertising
- Licenses and permits
- Professional fees (accountant, lawyer)
If you pay for it every month regardless of how many jobs you do, it's overhead!
Example: Plumber Job Quote
Job Details:
- • Labor Rate: $50/hour
- • Job Duration: 6 hours
- • Materials: $200 (pipes, fittings)
- • Equipment: $0
- • Monthly Overhead: $3,000
- • Monthly Billable Hours: 160
- • Desired Profit: 20%
Calculation:
- Hourly Overhead Rate = $3,000 ÷ 160 = $18.75/hour
- Allocated Overhead = $18.75 × 6 hours = $112.50
- Direct Labor = $50 × 6 = $300
- Total Cost = $300 + $200 + $0 + $112.50 = $612.50
- Final Quote = $612.50 × 1.20 = $735
Without overhead allocation, you might have quoted $600 (labor + materials + 20%). That's $135 less, and you'd be losing money!
Frequently Asked Questions
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