Your billable hours,after they pay the rent.
Utilization is the number agencies brag about and rarely audit. This one turns billable hours, your rate, and the loaded cost of a seat into the figure that actually matters: whether each person, and the whole team, clears a profit every month.
Your numbers
Hours per person, per week, that a client actually pays for.
Paid hours in a person's week — the denominator, usually around 40.
What you charge a client per billable hour.
Fully loaded cost of an hour: salary, tax, benefits, tools, overhead.
People doing client work — exclude pure admin and leadership.
The verdict
Utilization
70.0%
Monthly team profit
$25,114
Profit / person / wk
$1,160
Effective margin
34.5%
Per person, per week
You vs. the target band
Reverse-solve · hit a target utilization
Billable hrs needed
32
More hrs / wk
4
Hitting 80% utilization means 32.0 billable hours per person each week — 4.0 more than now. At $120/hr that moves monthly team profit to $35,506 across 5 people. More billable hours only help while the rate clears your $55 loaded cost.
Sensitivity · the rate lever
Same hours, different rate
| Billing rate | Profit / person / wk | Monthly team profit |
|---|---|---|
| $96 (-20%) | $488 | $10,565 |
| $108 (-10%) | $824 | $17,840 |
| $120 (now) | $1,160 | $25,114 |
| $132 (+10%) | $1,496 | $32,388 |
| $144 (+20%) | $1,832 | $39,663 |
| $156 (+30%) | $2,168 | $46,937 |
Your utilization never changes across this table — only the rate does. Because loaded cost barely moves, almost every dollar of a rate increase drops to profit. That's why repricing beats grinding out more billable hours.
Your move
Busy isn't the same as profitable. I'll show you the gap.
70.0% utilization → +$25,114 monthly team profit across 5 at $120/hr.
Send me your utilization, your rates, and your cost per seat. I'll tell you straight whether the fix is pricing, capacity, or scope — and which one frees the most cash first. Free, and you keep the plan whether or not you hire me.
Plain English
Utilization is a vanity number until you subtract the cost.
Utilization is the share of a person's paid week that a client actually pays for: billable hours ÷ available hours. Run 28 billable out of a 40-hour week and you're 70% utilized. It's the heartbeat metric of every agency, every studio, every consultancy that sells time.
On its own, though, it tells you almost nothing about money. A 90% utilized team billing below its loaded cost loses money faster than a 65% team billing at a healthy rate. Utilization measures how busy you are. It does not measure whether busy is profitable — and that gap is where most agencies quietly bleed.
So this calculator pairs the rate with the cost. It shows your utilization, then the part that decides whether you survive: profit per person per week, the whole team's monthly profit, and your effective margin per billable hour. Same hours, very different outcomes depending on the spread between what you charge and what a seat truly costs.
The formula
Utilization = Billable hours ÷ Available hours · Profit/person = (Billable × Rate) − (Available × Cost)
28 billable of 40 available is 70% utilization. At $120/hr that's $3,360 of weekly revenue per person; a $55 loaded cost across all 40 paid hours is $2,200, leaving $1,160 profit per person per week — roughly a 35% effective margin. Across 5 people that's about $25,100 in monthly team profit (×4.33 weeks).
Where utilization should land
Aim for 75–85% billable per person. Below that you're carrying idle capacity you still pay for; push past it and you've sold the slack you need for pitching, learning, and not burning people out. Treat the bands below as a rule of thumb, not gospel — your real floor is whatever rate clears your loaded cost:
| Band | Utilization | What it means |
|---|---|---|
| Starved | Under 60% | Bench is too deep — you're paying for hours nobody bills |
| Loose | 60–74% | Slack in the system; profitable accounts can subsidize it, thin ones can't |
| Healthy | 75–85% | The target band — busy enough to profit, room left to breathe and sell |
| Redlined | Over 85% | Looks great on a spreadsheet; burnout, no slack for pitches, quality slips |
Rule-of-thumb operator bands — not a published dataset. Your real floor is whatever rate clears your loaded cost.
Your number came back thin. Now what?
Utilization under ~60%.
You have too much bench for the work on the books. Either sell more (fill the pipeline) or right-size the team — idle capacity is the single most expensive thing an agency owns.
High utilization, low profit.
You're busy at the wrong price. Your rate is too close to your loaded cost. Raise rates, move to value-based or retainer pricing, or cut the cost of delivery before you sell another hour.
Utilization over 85% and rising.
This isn't a win, it's a warning. There's no slack for new business, training, or sick weeks, and quality and morale are the first things to crack. Hire ahead of the redline or scope tighter.
Good per-person profit, weak team total.
Your billable people are fine — the drag is non-billable overhead the model here excludes. Audit the ratio of billable to non-billable seats; every admin head needs several profitable billers behind it.
Ten ways to fix utilization economics
01Raise your rate first
A 10% rate increase drops almost entirely to profit because your cost per hour barely moves. It's the fastest lever on this whole page.
02Track billable vs. available weekly
What you don't measure drifts. A simple weekly utilization read catches a sinking number before it sinks a quarter.
03Kill scope creep
Unbilled rework is utilization you're giving away. Tighten statements of work and bill change requests instead of absorbing them.
04Shift to retainers
Predictable monthly retainers smooth utilization and let you plan capacity instead of lurching between feast and famine.
05Set a utilization target, not a max
Tell the team the goal is ~80%, not 100%. The remaining slack is where pitches, learning, and process improvement live.
06Right-size the bench deliberately
Carry just enough surge capacity for known peaks. Permanent idle headcount should convert to fractional or freelance.
07Lower loaded cost, not just salary
Tooling, real estate, and admin overhead all inflate cost per hour. Trim those and every billable hour earns more.
08Price by value where you can
Hours cap your upside at your rate. Outcome-based pricing breaks the link between effort and revenue entirely.
09Protect senior time
Senior hours carry the highest cost — don't bury them in work a junior should bill. Mismatched seniority quietly destroys margin.
10Forecast capacity against the pipeline
Match expected sold work to available hours a quarter out so you neither starve the team nor redline it.
The vocabulary
- Utilization rate
- Billable hours ÷ available hours, as a percentage. How much of a paid week a client actually pays for.
- Billable hours
- Hours a client is charged for. The numerator of utilization and the only hours that earn revenue.
- Available hours
- Paid working hours in the period, usually ~40/week. The denominator of utilization.
- Loaded cost
- The fully burdened cost of an hour: salary plus tax, benefits, tools, software, and allocated overhead.
- Effective margin
- Profit ÷ revenue per person, as a percentage. What you keep after the loaded cost of delivering the work.
- Realization rate
- Billed hours ÷ booked hours — a cousin of utilization that also captures hours worked but never invoiced.
Utilization questions, straight answers
Aim for 75–85% billable per person. That band keeps people busy enough to turn a profit while leaving real slack for pitching, training, and recovery. Below ~60% you're paying for idle capacity; sustained above 85% you've sold the breathing room your team needs and burnout follows. The exact target depends on your rate-to-cost spread.
Keep going
A calculator tells you what. A call tells you what to do about it.
Send me the account behind these numbers. I'll tell you straight where the money's leaking and what I'd fix first — free, and you keep it whether you hire me or not.