Revenue Calculator
Calculate annual revenue, monthly revenue, and projected growth for your business. Includes MRR tracking and month-by-month projections.
Revenue Inputs
Annual Revenue
$600,000
Base (Month 1) figure
Month-by-Month Projection
What Is Revenue?
Revenue is the total amount of money your business brings in from selling products or services, before any costs, taxes, or deductions are taken out. It sits at the very top of the income statement, which is why it is often called the top line. Every other number a business tracks, from gross profit to net income, starts from this single figure, so getting revenue right is the foundation of sound financial planning.
This revenue calculator is built for businesses that sell a measurable number of units at a set price and, optionally, earn recurring income on top. You enter how many units you sell each month, the price per unit, and any monthly recurring revenue, and the tool instantly returns your monthly revenue, your annual revenue, and a month-by-month projection that grows at a rate you choose. It is designed to turn the numbers you already track into a clear forecast without a spreadsheet.
Knowing your revenue answers practical questions every owner faces: How big is the business really? Is it large enough to support a new hire or a loan repayment? How quickly will it scale if sales keep climbing at the current pace? Because revenue is the number investors, lenders, and partners ask for first, having a fast and accurate way to calculate and project it is genuinely useful at every stage of growth.
How the Revenue Calculator Works
The calculator starts by working out your base monthly revenue. It multiplies the number of units sold per month by the price per unit, then adds any monthly recurring revenue (MRR) you enter. This single base figure drives every result on the page. Multiplying it by 12 gives the headline annual revenue, which the tool labels as a base, Month 1 figure because it assumes no growth across the year.
The growth rate slider then powers a compounding projection. For each month in your projection window, the calculator takes the base monthly revenue and multiplies it by one plus your monthly growth rate raised to the power of the month number minus one. Month 1 therefore equals the base figure exactly, Month 2 is one growth step higher, and so on. The tool adds every projected month together to produce the total projected revenue over your chosen window.
Finally, the growth amount shows the difference between the last projected month and your starting base month, making it easy to see how much your monthly revenue has expanded by the end of the projection. The MRR figure is displayed separately so you can always see how much of your monthly total comes from recurring income versus one-off unit sales.
Revenue & Projection Formulas
Where:
- Units= Number of units sold per month
- Price= Price charged per unit, in dollars
- MRR= Monthly recurring revenue added on top of unit sales
- g= Monthly growth rate, entered as a percent (0 to 20)
- m= Month number in the projection, from 1 to N
- N= Months to project, from 1 to 36
Understanding Monthly Recurring Revenue (MRR)
Monthly recurring revenue, or MRR, is the predictable income a business collects every month from subscriptions, retainers, memberships, or service contracts. Unlike one-off unit sales, MRR continues automatically until a customer cancels, which makes it the most stable and most prized part of many modern revenue models. The optional MRR field in this calculator lets you layer that dependable income on top of your transactional unit sales.
Adding MRR matters because it changes how resilient your revenue is. A business that earns $50,000 a month entirely from individual sales has to win every sale again next month. A business that earns the same total but with $20,000 of it locked in as recurring revenue starts each month much closer to its target. When you enter an MRR value, the calculator folds it straight into the base monthly revenue, so both your annual figure and your growth projection account for it.
If your business is purely transactional, simply leave the MRR field at zero and the calculator behaves as a classic units-times-price revenue model. If you run a hybrid model, such as a store that also sells a subscription box, enter both numbers and the tool blends them into one combined forecast. This flexibility is why the same revenue calculator works for retailers, freelancers, agencies, and SaaS founders alike.
How Monthly Growth Projections Compound
The growth rate slider applies compound growth, meaning each month builds on the slightly larger month before it rather than on a fixed starting amount. A 5 percent monthly growth rate does not simply add 5 percent of the first month every time; it adds 5 percent of whatever the previous month reached. Over a long projection window this difference becomes dramatic, which is the core reason compounding is so powerful for growing businesses.
The table below shows how a base monthly revenue of $10,000 evolves at three different monthly growth rates over the first six months, so you can see how small changes to the slider reshape the curve.
| Month | 0% Growth | 3% Growth | 10% Growth |
|---|---|---|---|
| Month 1 | $10,000 | $10,000 | $10,000 |
| Month 2 | $10,000 | $10,300 | $11,000 |
| Month 4 | $10,000 | $10,927 | $13,310 |
| Month 6 | $10,000 | $11,593 | $16,105 |
Notice that at 0 percent growth every month stays flat, so the total projected revenue over 12 months simply equals your annual revenue. At higher rates the gap widens quickly, which is why a realistic, sustainable growth assumption produces a far more trustworthy forecast than an optimistic guess.
Revenue vs. Profit: Why the Difference Matters
One of the most common mistakes in business is treating revenue and profit as the same thing. Revenue is the gross money coming in; profit is what remains after you subtract the cost of goods sold, operating expenses, taxes, and interest. A company can generate millions in revenue and still lose money if its costs are higher than its sales. That is why investors look at both the top line and the bottom line before drawing conclusions.
This calculator deliberately focuses on revenue so you can build a clean top-line forecast first. Once you know your projected monthly and annual revenue, you can pair it with a margin estimate to approximate profit. For example, if your business runs a 30 percent net margin, a projected $600,000 in annual revenue implies roughly $180,000 in profit. Keeping the two figures separate keeps your planning honest and prevents the trap of celebrating high sales while quietly losing cash.
For deeper analysis, use this revenue figure as the input to profit, margin, and break-even tools. A reliable revenue projection is the anchor that every downstream calculation depends on, so it pays to model it carefully here before moving on to cost and profitability questions.
Who Should Use a Revenue Calculator
A revenue calculator is useful to almost anyone who sells something. Small retailers and e-commerce stores use it to translate daily unit sales into an annual figure for budgeting and inventory planning. Freelancers and consultants use it to see whether their current client load supports their income goals. Startup founders use the growth projection to model how quickly recurring revenue could scale if they keep adding customers at a steady pace.
Lenders and investors frequently ask for revenue figures and forward projections before committing capital, so having a defensible monthly and annual number ready can speed up financing conversations. Even internally, sales managers use revenue projections to set quotas, while operations teams use them to plan staffing and capacity. Because the tool only needs three core inputs, units, price, and an optional recurring figure, it works equally well for a quick back-of-the-envelope estimate or a more deliberate planning session.
The key to getting value from any revenue projection is using realistic inputs. Base your units and price on recent actual sales rather than best-case hopes, and choose a growth rate you can genuinely sustain. With grounded numbers, this revenue calculator becomes a dependable planning companion rather than a wishful guess.
Worked Examples
Product business at default settings
Problem:
A store sells 1,000 units per month at $50 each, with no recurring revenue, and projects 12 months at a 5% monthly growth rate.
Solution Steps:
- 1Base monthly revenue = (1,000 x $50) + $0 = $50,000.
- 2Annual revenue = $50,000 x 12 = $600,000.
- 3Month 12 revenue = $50,000 x (1 + 5/100)^(12-1) = $50,000 x 1.05^11 = $85,516.97.
- 4Growth amount = $85,516.97 - $50,000 = $35,516.97; total projected over 12 months = $795,856.33.
Result:
Monthly revenue $50,000, annual revenue $600,000, with the 12-month projected total reaching about $795,856.
SaaS hybrid with MRR and growth
Problem:
A SaaS app sells 200 add-on units per month at $30 each and also earns $8,000 in MRR, projecting 6 months at a 3% monthly growth rate.
Solution Steps:
- 1Base monthly revenue = (200 x $30) + $8,000 = $6,000 + $8,000 = $14,000.
- 2Annual revenue = $14,000 x 12 = $168,000.
- 3Month 6 revenue = $14,000 x 1.03^5 = $14,000 x 1.159274 = $16,229.84.
- 4Growth amount = $16,229.84 - $14,000 = $2,229.84; total projected over 6 months = $90,557.74.
Result:
Monthly revenue $14,000 (including $8,000 MRR), annual revenue $168,000, and a 6-month projected total near $90,558.
Flat revenue with zero growth
Problem:
A service firm sells 500 units per month at $20 each, no MRR, projecting 12 months at a 0% growth rate.
Solution Steps:
- 1Base monthly revenue = (500 x $20) + $0 = $10,000.
- 2Annual revenue = $10,000 x 12 = $120,000.
- 3With 0% growth every month stays at $10,000, so the growth amount = $10,000 - $10,000 = $0.
- 4Total projected over 12 months = $10,000 x 12 = $120,000, exactly equal to annual revenue.
Result:
Monthly revenue $10,000 and annual revenue $120,000, with the 12-month projected total matching annual revenue at $120,000 because growth is zero.
Tips & Best Practices
- ✓Base your units and price on recent actual sales, not best-case hopes, for a trustworthy forecast.
- ✓Leave MRR at zero if you have no subscriptions; the tool then works as a pure units-times-price model.
- ✓Use a sustainable monthly growth rate; small slider changes compound into large differences over many months.
- ✓Remember the headline annual revenue assumes no growth, while the projected total reflects your growth slider.
- ✓Pair the revenue figure with your net margin to estimate profit before making spending decisions.
- ✓Project a shorter window first to sanity-check the monthly figures, then extend to 36 months for long-range planning.
- ✓Track how much of your monthly total comes from MRR; recurring income makes revenue far more resilient.
Frequently Asked Questions
Sources & References
Last updated: 2026-06-05
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
Formula Source: Standard Mathematical References
by Various