How to calculate the ROI of simultaneous translation for corporate events in SP. Real cases with before-and-after numbers.
How much a poor decision caused by a lack of interpretation costs compared with the service. Real cases with numbers.
'Representations and warranties' clause interpreted incorrectly. Unmapped liability generated an 8-month post-closing dispute.
A specialized interpreter identified legal ambiguity in the session. Clause renegotiated before the SPA. Dispute avoided.
Training conducted in English. Managers with intermediate English absorbed ~40% of the content. Post-training survey confirmed low retention.
Simultaneous interpretation into Portuguese. Post-training survey showed 78% content retention. Training ROI tripled.
Without interpretation, a foreign witness's testimony was summarized by the lawyer — admissibility challenged by the opposing party.
Certified interpretation. Full testimony admitted. Technical evidence preserved in full.
Sector technical terms mistranslated or transcribed without translation. Confused participants. Need for a post-event clarification session. Organizing company's credibility affected.
Sector glossary sent to the client beforehand for validation. Technical terms mapped across 222 subsectors. lingo Human Interpreter available as backup for critical terms not covered.
The real calculation: the cost of redoing a poorly interpreted training session — or of rebuilding the trust of an international partner who heard incorrect terminology — is always greater than the price difference between a generic AI and one trained on your sector.
The formula is simple:
For trainings, use: Training cost × (retention difference with and without interpretation).
The ROI of simultaneous interpretation is not calculated like that of equipment that generates direct revenue. The logic is different: interpretation protects the value of an event where communication across languages is a condition for the result. For this reason, the calculation compares two numbers. On one side, the cost of the service. On the other, the value at stake when the message needs to be understood accurately.
The cost of the service includes the interpreters, who work in pairs with rotation when the event runs past 2 hours, the equipment (transmitter, receivers and booth), the on-site technician and preparation with the event material. lingo's automatic quote brings these items together, and the quote amount is the final amount on the invoice. The factors that form the price are in how much simultaneous interpretation costs in SP.
The value at risk depends on the type of event. In a negotiation or acquisition, it is the value of the transaction and of the obligations that will be assumed based on what was said in the room. In a training, it is the investment made in time, instructor and participants, and the share of it lost when the content is not understood. In a legal proceeding, it is the value of the case and the weight of evidence that depends on the speech of a witness or party.
At corporate events and congresses, the risk is less numerical and more tied to reputation: an international partner who heard the wrong terminology, a talk the audience could not follow, a presentation in which the investor did not grasp the central point. This cost exists even when it does not appear in a spreadsheet, and it is worth recording in the internal case, even in qualitative terms.
In M&A, a poorly interpreted sentence can become a misunderstood obligation. Representations and warranties clauses, conditions precedent and price adjustments have precise legal vocabulary, and the difference between two similar terms can change the scope of a liability. The acquisition scenario with due diligence in two languages, above, illustrates this logic: the gain from specialized interpretation is identifying ambiguities while it is still possible to renegotiate.
Confidentiality is also part of the equation. lingo signs an NDA valid for 5 years before receiving any material, and Alex Barros does not accept competing mandates in the same deal. To learn about the service format, see simultaneous interpretation in due diligence.
In trainings with a foreign facilitator, ROI is measured by retention. When the team has different levels of language command, part of the group follows well and part only grasps the gist. The simplest way to check is to run a comprehension survey after the session and compare it with previous trainings. The formula proposed on this page, training cost multiplied by the retention difference with and without interpretation, turns this comparison into value.
For long trainings, interpretation quality depends on the glossary and on material sent in advance. The sooner lingo receives slides, handouts and the company's own terms, the more accurate the result. Sessions over 2 hours have a pair of interpreters with rotation, which keeps quality up throughout the day.
In arbitrations and hearings, interpretation serves the record. When testimony is summarized by someone who is not an interpreter, the opposing party can question the fidelity of what was said. Interpretation by a dedicated professional, with the speech rendered in full, preserves the content for whoever will analyze the proceeding later. The value at risk, in this case, is the strength of the evidence and the time spent debating its validity.
In proceedings that combine simultaneous and consecutive interpretation, the choice of mode also affects session time. The comparison is in simultaneous vs consecutive interpretation.
The following example uses invented numbers only to show the structure of the calculation, and does not represent lingo prices or client results. Suppose a leadership training whose total cost, including instructor, venue and participants' hours, is R$ 200,000. If the post-training survey indicates that, without interpretation, content retention among managers would be 40%, and with interpretation it would be 80%, the difference is 40 percentage points.
Applying the formula, the recovered value is R$ 200,000 multiplied by 40%, that is, R$ 80,000. This is the value of the investment that stops being wasted. Compare this number with the interpretation quote, which you get in 60 seconds in the automatic quote, and the result shows whether the service pays for itself. If the quote is lower than the recovered value, ROI is positive.
Retention values should come from your own internal survey, not generic references. The structure works for any event: replace the training cost with the value at risk of your event and the retention difference with an honest estimate of comprehension.
lingo offers human interpretation and AI interpretation. The choice between them is part of the ROI calculation. At low-risk events, where the goal is general understanding, an AI solution may be enough. At events where a wrong technical term has consequences, such as M&A, legal, financial and healthcare, the human interpreter is the choice that protects value. The comparison scenario on this page describes the difference between generic AI and AI trained on sector vocabulary.
A third possibility is to combine both: AI for most of the content and a backup human interpreter for critical terms. The options are in in-person AI interpretation and remote AI interpretation.
The lingo kit includes spare receivers and a redundant transmitter precisely to reduce technical risk. The details of what is included in the rental are in simultaneous interpretation equipment rental in SP.
To defend the investment internally, the manager usually needs a short document. A simple structure works well: describe the event and languages, estimate the value at risk, present the lingo quote, compare the two numbers and list what happens without interpretation. If there was a similar previous scenario, include what was learned from it.
The lingo team helps structure this case. Alex Barros, founder, is a simultaneous interpreter with 21 years of experience and knows the kind of questions finance and legal usually ask. For documented cases of events served, see the cases page, and for general questions, the simultaneous interpretation FAQ.
Not every event needs simultaneous interpretation. In a short internal meeting, with participants who have a good command of the working language, the service brings little return. The same applies to informal gatherings where general understanding is enough and no commitment depends on an exact term. Recognizing these cases is part of an honest ROI analysis and avoids spending where risk is low.
The return grows when three factors appear together: an audience with different levels of language command, technical or legal content, and concrete consequences for a misunderstanding. The more of these factors are present, the more the service is justified. If you are unsure, describe the event to the lingo team, which indicates the most suitable format, including consecutive when it serves better.
With these answers, the manager can bring finance an objective proposal. To compare the modalities, see in-person simultaneous interpretation and remote.
Compare the value at risk of the event with the cost of interpretation. For trainings, multiply the training cost by the retention difference with and without interpretation. The quote is ready in 60 seconds at lingo.com.br/orcamento.
It is the value that depends on the message being understood accurately: the value of an M&A transaction, the investment in a training or the strength of evidence in a legal proceeding.
Interpreters, equipment (transmitter, receivers and booth), on-site technician and preparation. The quote amount is the final amount on the invoice.
It depends on the risk. For general understanding at low-risk events, AI may be enough. For M&A, legal, financial and healthcare, the human interpreter protects value better. It is also possible to combine AI with a backup human interpreter.
Yes. The lingo team helps structure the comparison between the value at risk and the cost of interpretation. Talk via WhatsApp or use the automatic quote.
Our team helps structure the internal investment case.