OmniCalc

Revenue Calculator

Business

Calculate projected revenue

Revenue is the starting line for every other financial metric in a business — profit, margin, growth rate, and valuation all build on top of it. Yet the way revenue is calculated differs depending on the business model: a retailer multiplies units sold by price per unit, while a subscription business projects Monthly Recurring Revenue (MRR) forward into Annual Recurring Revenue (ARR) to understand its run rate.

Our revenue calculator handles both. For transactional businesses, enter units sold and price per unit to get total revenue instantly. For subscription businesses, enter your current MRR to project ARR (simply MRR × 12), a standard figure used in SaaS reporting, investor updates, and valuation multiples. You can also model projected revenue by adjusting units, price, or growth assumptions to see how changes flow through to the top line before you commit to a pricing change or sales target.

Whether you're building a sales forecast, reporting monthly recurring revenue to investors, or simply checking your math on a quarter's sales figures, this calculator gives you an instant, accurate number — the same top-line figure that flows into every margin, growth, and valuation calculation that follows.

Why Revenue Calculator Matters

Revenue is the top line of the income statement and the foundation every other financial calculation depends on. Gross margin, net margin, CAGR, valuation multiples, and burn rate all reference revenue as an input — get the revenue number wrong, and every metric built on top of it is wrong too.

For operating businesses, accurately projecting revenue drives decisions across the company: how much inventory to order, how many people to hire, how much marketing budget to allocate, and whether a pricing change is likely to grow or shrink the top line. A small error in projected units sold or average price compounds across a full year's forecast, which is why disciplined businesses stress-test their revenue assumptions with multiple scenarios (conservative, expected, optimistic) rather than a single point estimate.

For subscription businesses, the MRR-to-ARR conversion is the standard language investors and boards use to evaluate growth-stage companies. Valuation multiples (e.g., "5x ARR") are applied directly to this figure, so accurately tracking and projecting ARR has a direct, material effect on a company's perceived value and fundraising position.

The Revenue Calculator Formula, Explained

Total Revenue = Units Sold × Price per Unit; Annual Recurring Revenue (ARR) = Monthly Recurring Revenue (MRR) × 12

The transactional formula is straightforward multiplication: every unit sold contributes its price to total revenue. For businesses with multiple products or price tiers, total revenue is the sum of (units × price) across every product line.

For subscription businesses, MRR is the predictable revenue collected from active subscribers each month, including new subscriptions, expansions (upgrades), and minus churn (cancellations and downgrades) — often broken out as New MRR, Expansion MRR, and Churned MRR. ARR simply annualizes this figure by multiplying by 12, giving a standardized run-rate metric that's easy to compare across companies and time periods regardless of billing cycle.

Note that ARR is a run-rate projection, not audited historical revenue — it assumes the current MRR holds steady for a full year, which is a simplification. Actual annual revenue will differ if growth, churn, or pricing changes during the year.

How to Use the Revenue Calculator: Step by Step

  1. Choose your revenue model

    Select the transactional method (units × price) for product sales, or the recurring revenue method (MRR × 12) for subscription businesses.

  2. Enter units and price, or MRR

    For transactional revenue, input total units sold and price per unit. For recurring revenue, input your current Monthly Recurring Revenue.

  3. Add multiple product lines if needed

    For businesses with several products or price tiers, calculate revenue for each line separately, then sum the results for total company revenue.

  4. Review your result

    The calculator returns total revenue (transactional) or projected ARR (subscription), giving you the top-line figure for further financial analysis.

  5. Model different scenarios

    Adjust units sold, price, or MRR growth assumptions to see how pricing changes or sales targets would affect your projected revenue before committing to them.

Revenue Calculator Examples: Real-World Scenarios

1

Retail Store — Units × Price

A specialty retailer sold 1,500 units of a product last quarter at an average price of $45 per unit.

Units sold:1,500
Price per unit:$45

Calculation

Revenue = 1,500 × 45 = 67,500

Result

Total quarterly revenue for this product line is $67,500.

2

SaaS Company — MRR to ARR

A subscription software company has $42,000 in Monthly Recurring Revenue this month and wants to report its annualized run rate to investors.

MRR:$42,000

Calculation

ARR = 42,000 × 12 = 504,000

Result

Annual Recurring Revenue (run rate) is $504,000 — the standard figure the company will report to investors and use for valuation discussions.

3

Multi-Tier Product Revenue

An electronics brand sells a budget model (200 units at $65) and a premium model (320 units at $89.99) in one month.

Budget: units:200 @ $65
Premium: units:320 @ $89.99

Calculation

Budget revenue = 200 × 65 = 13,000. Premium revenue = 320 × 89.99 = 28,796.80. Total = 13,000 + 28,796.80

Result

Combined monthly revenue across both product tiers is $41,796.80.

Common Mistakes to Avoid

  • Confusing revenue with profit — revenue is the total amount collected before any costs are subtracted; profit is what remains after expenses. A high-revenue business can still be unprofitable.
  • Using list price instead of actual realized price when discounts, returns, or promotions are common — this overstates true revenue and skews every downstream calculation.
  • Treating ARR as guaranteed future revenue rather than a run-rate snapshot — actual revenue will differ if churn, expansion, or new sales change MRR during the year.
  • Double-counting revenue across overlapping periods (e.g., summing monthly figures that already include a prior month's deferred revenue), which inflates the total.

Tips & Tricks

  • For subscription businesses, break MRR into New, Expansion, and Churned components each month — this reveals whether growth is coming from new customers, existing customers upgrading, or simply offsetting churn.
  • Build revenue projections with a range (conservative, expected, optimistic) rather than a single number, since small changes in units sold or price compound significantly over a full year.
  • Report revenue consistently (gross vs. net of returns/discounts, cash vs. accrual basis) so month-over-month and year-over-year comparisons remain accurate.

Revenue is the number every other financial metric is built on, so getting it right — whether from unit sales or recurring subscriptions — is the essential first step in any financial analysis. Use this calculator to check your top-line numbers quickly, then move on to margin, growth rate, and cash flow to get the full financial picture. Pair it with our profit margin calculator and CAGR calculator to see how your revenue translates into profitability and growth over time.

Revenue Calculator — Frequently Asked Questions

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Authoritative References

Investopedia — Revenue Definition

investopedia.com — Formula reference and accounting context for revenue

U.S. Small Business Administration — Manage Your Finances

sba.gov — Official guidance on tracking and forecasting business revenue

Y Combinator — Startup Metrics That Matter

ycombinator.com — Startup context on MRR, ARR, and revenue benchmarks

External links open in a new tab. OmniCalc.us is not affiliated with these organisations.

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