Marketing Budget Calculator

Free marketing budget calculator: use revenue, planning percent and a channel split for monthly budget by channel and a lead target from your cost per lead

11/12/20266 min read

Santa and a shop owner split a budget with a three-color pie chart and bowls of coins
Santa and a shop owner split a budget with a three-color pie chart and bowls of coins

A marketing budget calculator is a planning worksheet that turns the revenue you enter, a percent of that revenue you choose yourself, and a split across channels into a monthly budget by channel, then into a lead target from a cost per lead you also type in. The calculator above uses only those inputs. It does not prescribe a percent, it does not forecast sales, and the results are estimates, not a quote.

This page is for small-business owners who want a clear monthly plan for search, social, and other outreach they already use, before they hire help. If you want campaigns run for you, Google Ads management is $899/mo, with ad spend billed separately, and social media management is $899/mo. Exact deliverables are confirmed in writing on a consult.

How a marketing budget calculator works

Enter three kinds of numbers, all yours:

  • Annual revenue, for a typical year or last year, from figures you already have. The calculator divides the result by 12 to give a monthly plan.

  • A goal percent of revenue that you set. The tool does not supply a standard rate, and this article does not invent one. Pick a percent you can fund and are willing to review after a month or two.

  • A channel split — how you want that budget divided across the channels you actually use (for example, search ads, social, and a remaining “other” bucket for email, print, or events).

  • A cost per lead you already observe, or a conservative figure you will revise, if you want a lead target.

The calculator then shows the annual budget (annual revenue × your percent), the monthly budget (annual budget ÷ 12), the amount for each channel from your split, and a lead target (budget ÷ your cost per lead). If a channel has no reliable cost per lead, leave that lead target out of your decision, or run the lead math only on the portion of spend where you can count leads.

The worksheet runs in your browser and stores nothing. It does not connect to ad accounts and it does not spend the money for you.

The percent-of-revenue method (you set the percent)

A common way to start a marketing plan is to take a period of revenue and apply a percent you have already decided you can spend. That is all the method is: a way to size the pool before you divide it.

It is not a rule that every business should use the same percent. Cash on hand, how much work you can actually take, and how quickly you can follow up leads all matter more than a copied rate. If you cannot name a percent you are prepared to spend, start with a small figure you can keep for a full month, then raise it only after you have seen the leads and the follow-up load.

Write the percent down next to the revenue figure you used, so you can change one input at a time later. If revenue is seasonal, remember the tool spreads the annual budget evenly across 12 months. A busy December and a slow February get the same monthly figure, so adjust your own month-by-month timing outside the tool.

This method also does not tell you whether the spend will come back as jobs. That depends on the offer, the follow-up, and the cost per lead you really get, not on the percent alone.

Splitting the budget across channels

Once you have a monthly pool, split it only across channels you will actually monitor. A split that puts money on a network no one on the team can reply to is not a plan.

A practical way to write the split:

  • Search ads, if you already get calls or forms from people looking for the work you do, and someone can answer those leads.

  • Social, if you can post and reply on a cadence you will keep. A weekly plan can live in the weekly social media content planner; this calculator only sizes the spend.

  • Other, for email, printed pieces, or local events you already run, if you want those in the same monthly picture.

Use percentages that add up to 100% of the pool you set. If you are not running ads this month, give that share a zero and put the money where you will actually work. Recheck the split when an offer, a season, or your capacity changes.

Google Ads management, if you want help with search campaigns, is $899/mo, with ad spend billed separately. Social media management is $899/mo. Those fees are not ad or media spend. Do not enter them as a channel in the calculator unless you are deliberately including professional help in the same monthly cash picture, and even then, keep the fee separate from the media budget in your own notes so the lead-target math stays honest.

If you want help setting that split against campaigns we would run, Book a free consult. See Google Ads management and social media management. We do not promise more leads or a particular return from a split.

A lead-target worked example with labeled example numbers

The following numbers are example numbers for illustration only. They are not a recommended percent, not a recommended split, and not a client result. They are not a quote, and they are not a forecast that the leads will arrive.

Suppose you enter:

  • Annual revenue: $240,000

  • Goal percent: 8% (a figure you chose for this illustration, not a rate we recommend)

  • Channel split: 50% search ads, 30% social, 20% other

  • Cost per lead, from your own recent counts: $80

The annual marketing budget is $240,000 × 0.08 = $19,200, and the monthly budget is $19,200 ÷ 12 = $1,600. The channel amounts are $800 for search ads, $480 for social, and $320 for other. If you apply the $80 cost per lead to the full $1,600, the lead target is $1,600 ÷ $80 = 20 leads. If you apply it only to the $800 search-ads share, the target for that channel is 10 leads. Neither figure is a promise.

If your real cost per lead is $160, the same $1,600 pool implies 10 leads, not 20. If you cannot yet count cost per lead, skip the lead target and use the budget and the split only, then start tracking sources in a simple sheet such as the lead source tracking sheet.

Change the percent, the split, or the cost per lead and the picture changes. Run your own revenue and rates in the calculator instead of reusing this example.

How much should a small business spend on marketing?

There is no single amount this page can name. The honest answer is: pick a percent of revenue you can fund for a full planning period, split it across the channels you will actually run, and judge the plan against a cost per lead you can count. The calculator above turns those choices into a monthly picture. It does not tell you that a higher percent will produce more jobs, and it does not tell you to match a figure you saw somewhere else.

Capacity matters as much as the percent. A budget that would produce more leads than your office can answer is too large until follow-up is in place. A budget you cannot keep for the whole month is too large as well.

After the month, compare what you spent, the leads you actually received, and the jobs you booked. Then set the next month’s percent and split from those counts, not from the first estimate.

Run your numbers in the calculator above

  1. Enter your annual revenue and a percent you have chosen yourself.

  2. Enter a channel split that matches the channels you will monitor.

  3. Enter your own cost per lead if you want a lead target.

  4. Read the monthly budget, the channel amounts, and the lead target as estimates. Nothing is stored, and nothing is a quote.

If you want help running the ads or social share of a plan like this, Book a free consult. Google Ads management is $899/mo, ad spend separate. Social media management is $899/mo. We do not promise a particular number of leads.

Frequently asked questions

How does a marketing budget calculator work?

A marketing budget calculator takes the revenue you enter, a percent you set, and a channel split, then shows a monthly budget by channel. If you also enter a cost per lead, it shows a lead target from that figure. The calculator above uses only your inputs. The results are estimates, not a quote and not a forecast.

How much should a small business spend on marketing?

You choose a percent of revenue you can fund and review, then split it across the channels you will actually run. This tool does not prescribe a percent, and this article does not invent a standard rate. Judge the plan after a month against the leads and jobs you can count.

How should I split a marketing budget across channels?

Split it only across channels you will monitor, in percentages that add up to the full pool. A common starting sketch is search, social, and a remaining bucket for other outreach you already use, but that mix is yours to set. Recheck the split when your offer or your capacity changes.

How does the lead-target figure work?

It is the budget you applied, divided by the cost per lead you typed. If the cost per lead is only accurate for one channel, apply the math to that channel’s share only. The target is a planning figure. It is not a promise that those leads will arrive.

When is it time to get help with ads or social?

When you want the weekly work run for you, or when the plan is large enough that you cannot watch the channels yourself. If that is you, Book a free consult. Google Ads management is $899/mo, ad spend separate. Social media management is $899/mo. We do not promise more leads or a higher ranking.

If you want help turning a monthly budget into campaigns, Book a free consult. We do not promise a particular return from a marketing plan.

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