Startup Valuation: How to Value Your Startup and Use a Calculator

In August 2024, British fintech company Revolut reached a $45 billion valuation through a secondary share sale involving new and existing investors. The company, launched in 2015, had grown from an app designed to make spending abroad easier into a global financial technology business. At the time, its valuation was up from $33 billion in 2021. Revolut announced the share sale on its website.

That's a remarkable journey, but it raises a question every founder eventually faces: how do you decide what a startup is worth?

For a growing company like Revolut, investors can examine revenue, customer numbers and financial performance. For an early-stage founder, the answer is often less obvious. You might have a working product and your first paying customers, but not enough financial history to show what the business could become.

Startup valuation is about more than what your business earns today. It's about assessing potential, progress and risk, then making reasonable assumptions about what investors might pay.

Our free Startup Valuation Template and Calculator helps you assess your business using four valuation methods and develop an indicative estimate.

What Is Startup Valuation?

Startup valuation is the estimated financial worth of a business at a particular point in time. It helps founders understand what their company might be worth when raising investment, bringing in a co-founder or negotiating with potential buyers.

Unlike the price of a product, a startup's valuation isn't always a straightforward calculation. A profitable business might be assessed on earnings, while an early-stage startup with limited revenue may be valued partly on customer traction, technology, market opportunity and growth potential.

Imagine a software startup generating £10,000 in monthly recurring revenue. Its founder could calculate annual recurring revenue (ARR), consider a suitable revenue multiple and compare the result with other factors, such as growth and customer retention. The resulting figure would be an estimate, not a guaranteed selling price.

Valuation also depends on context. A founder's estimate may differ from an investor's offer because each party has different expectations, assumptions and views of the risks involved. Ultimately, a funding valuation is negotiated between the company and its investors.

A calculator can help you organise your assumptions and establish a reasoned starting point, but it can't determine exactly what someone will pay for your business.

Pre-Money vs Post-Money Valuation

Pre-money valuation is your startup's agreed value immediately before a new investment. Post-money valuation is its value after that investment is added.

Say you agree on a pre-money valuation of £800,000, and an investor offers £200,000.

The post-money valuation is £1 million. The investor's ownership is calculated by dividing the £200,000 investment by that figure, giving the investor 20% and leaving existing shareholders with 80% in this simplified example.

If the same £1 million figure were pre-money instead, the post-money valuation would be £1.2 million, giving the investor approximately 16.7% ownership. The same headline number can produce a meaningfully different outcome.

These calculations assume a straightforward equity investment, without additional share issuances or other adjustments that could affect ownership.

Watch this visual explanation of pre-money and post-money valuation to see how the numbers affect ownership. If you want to model these changes for your own business, our Cap Table Model Template with Funding Calculator can help you explore investor ownership and founder dilution.

What Affects a Startup's Valuation?

Two startups in the same industry can receive very different valuations depending on their progress, growth potential and risk.

Revenue and financial performance. Revenue shows that customers are willing to pay. For subscription businesses, ARR is particularly useful, but revenue alone doesn't tell the whole story. Investors may also examine profit margins, cash flow, customer acquisition costs and retention. See our Profit & Loss Statement guide for help assessing these figures.

Market size and growth potential. Investors want to see room to grow, although a focused niche can still support a valuable company. Be ready to explain who your customers are, how many potential buyers exist and what portion of the market you could realistically reach.

Customer traction. Early sales, repeat purchases and customer growth can demonstrate demand. For startups without meaningful revenue, an active minimum viable product (MVP), pilot programmes or signed customer commitments can help show progress, although these signals aren't equivalent to paying customers.

Team and competitive advantage. Investors consider whether the founding team can execute its plans. Relevant experience, technical expertise, industry relationships and the ability to attract talent can strengthen a startup's case. Proprietary technology, intellectual property or a strong understanding of an underserved market can also help distinguish the business from competitors.

Risk and market conditions. Limited financial records, dependence on one customer or an untested business model can make investors more cautious. Broader conditions, including investor appetite, interest rates and comparable company valuations, can influence the terms they're prepared to offer.

Valuation isn't determined by one number. It's a combination of financial performance, progress, potential and risk.

Four Startup Valuation Methods Explained

There's no single method that works for every startup. Your template includes four approaches: Revenue Multiplier, By Stage, Future Valuation and the Berkus Method.

1. Revenue Multiplier Method

This method estimates value by multiplying revenue by a selected multiple. For example, a software startup generating £300,000 in ARR, using an illustrative 5x multiple, would have an estimated valuation of £1.5 million (£300,000 × 5).

The multiple isn't universal. Two companies with the same ARR could receive different valuations depending on growth, retention, margins, business models and comparable deals. Treat the multiple as an assumption to research and justify, not a number chosen simply because it produces a higher result.

2. By Stage Method

A startup's value depends partly on how far it has progressed. Consider two startups developing software for small businesses. One has a prototype but no paying customers; the other has launched, secured business customers and demonstrated demand.

Even if both target the same market, investors may view the second as less risky because it has stronger evidence of demand. Stage alone doesn't determine valuation, but it provides useful context when assessing progress and potential.

3. Future Valuation Method

This method starts with an estimate of what the business might be worth after reaching future milestones. Your template asks for projected ARR and other revenue at the end of an 18-month period, with discount assumptions to consider when estimating present value.

If a startup expects £500,000 in ARR after 18 months and uses an illustrative 5x revenue multiple, its projected future valuation would be £2.5 million before any discount. That doesn't mean the business is worth £2.5 million today. The forecast depends on acquiring and retaining customers and delivering the planned growth.

When preparing projections, revenue is only part of the picture. Our Cash Flow Forecast guide explains how to plan incoming and outgoing payments and anticipate potential cash shortages.

4. Berkus Method

The Berkus Method is designed for early-stage startups where revenue may not yet provide enough evidence to support a valuation. It assesses progress across five areas:

• Sound idea: Is the business solving a genuine problem?

• Prototype or MVP: Has the idea been developed into something that can be tested?

• Management team: Does the team have the skills to execute the plan?

• Strategic relationships: Has the business established useful partnerships or industry connections?

• Initial sales or traction: Is there evidence of customer interest or market demand?

Your template assigns scores and monetary values across these areas and includes a country multiplier. Treat that multiplier as an adjustment assumption, not an objective measure of a country's startup ecosystem.

The original Berkus Method was developed under specific assumptions for early-stage businesses. Its monetary limits shouldn't be treated as universal standards for every market or company.

The right starting point depends on your evidence. A startup with recurring revenue may find the Revenue Multiplier Method useful, while one still validating its product may benefit more from assessing progress through the Berkus Method. Use the approaches that fit your circumstances rather than treating any single estimate as definitive.

A credible valuation isn't necessarily the highest number you can calculate. It's one you can defend using realistic assumptions and evidence about your business.

How to Use the Startup Valuation Template and Calculator

The Startup Valuation Template and Calculator brings the four methods together to help you organise your assumptions and develop an indicative estimate.

Step 1. Make a copy and gather your figures. Review the instructions and complete the highlighted input cells. Gather your ARR, other revenue figures and growth forecasts where relevant.

Step 2. Choose the applicable methods. Decide which approaches fit your startup. A recurring-revenue business may use the Revenue Multiplier Method, while a prototype-stage business may focus more on its progress and early traction. Don't select a method simply because it gives the highest result.

Step 3. Enter your figures and assumptions. Complete the relevant revenue and multiplier fields, assess your stage and traction, enter projected 18-month revenue, and score the five Berkus areas. Keep a note of where your assumptions come from, and research comparable companies where possible.

Step 4. Review the weighted valuation. The template includes weighting and weighted-result fields. Review your inputs carefully and investigate any method that produces a result far above the others before relying on the combined estimate.

Step 5. Challenge the result. What happens if revenue grows more slowly than expected? Would a lower multiple change your estimate significantly? Are your milestones achievable with your current resources?

The aim isn't simply to produce a number. It's to understand the reasoning behind it well enough to explain your assumptions, recognise the risks and revise your estimate when the evidence changes.

Worked Example: Estimating a Startup's Value

Imagine a fictional UK software startup called Northstar, which provides subscription-based scheduling software for small businesses. It has launched its product, gained early paying customers and reached £15,000 in monthly recurring revenue, equivalent to £180,000 in ARR.

Revenue Multiplier: At an illustrative 4x ARR multiple, its estimated value would be £720,000 (£180,000 × 4). The multiple is an assumption for this example, not a market benchmark.

By Stage: The founder assesses Northstar's launched product and early traction. These provide useful context, although stage alone doesn't establish a reliable valuation.

Future Valuation: The founder forecasts revenue over 18 months and considers the template's discount assumptions. The estimate depends on how credible those projections are.

Berkus Method: The founder evaluates the idea, product development, team, strategic relationships and traction, providing another perspective on progress and risk.

The point isn't to declare Northstar worth exactly £720,000 or assume every method will produce the same figure. It's to see how different assumptions produce different estimates and to be ready to explain the multiple chosen, the evidence behind future growth and why particular methods were used.

Common Startup Valuation Mistakes to Avoid

Overestimating future growth. Forecasts built around a best-case scenario, without accounting for acquisition costs, churn or delivery capacity, can weaken your case. Use realistic assumptions and explain how you plan to achieve your targets.

Choosing a flattering multiple. Base your multiple on relevant evidence, comparable companies, growth rates and margins, not simply the number you hope to reach.

Ignoring the risks. A promising product doesn't remove risks around competition, retention or customer concentration. Recognising them produces a more balanced estimate.

Treating the calculator's result as a guaranteed price. Investors may assess your business differently depending on market conditions, investment terms and their expectations. Use the output as a basis for discussion, not a guaranteed offer.

Forgetting the impact on ownership. A valuation can look attractive until you calculate how much equity you need to give away. Before agreeing to a funding round, understand pre-money and post-money valuation and consider how the investment affects existing shareholders.

A credible valuation isn't necessarily the highest number you can calculate. It's one you can defend with evidence when someone challenges it.

Final Thoughts

Valuing a startup is rarely straightforward, especially while you're still building, finding customers and proving your business model works. There may not be enough financial history for one clear answer, but that doesn't mean guessing is the only alternative.

By understanding different methods and reviewing your assumptions honestly, you can build a more informed and defensible estimate of what your startup might be worth.

Your valuation isn't set in stone. It can change as your revenue grows, your customer base expands and you gather more evidence of demand. What matters is understanding how you arrived at your number and being prepared to explain it.

Start with the free Startup Valuation Template and Calculator. If you'd like to compare it with another approach, the Valuation Model Spreadsheet from Activate Ventures includes methods such as simple comparables, scorecard valuation, earnings multiples, the Berkus Method and discounted cash flow.