How the math works
Every number is explainable. The weights and assumptions are shown openly — nothing is hidden, and no account or personal data is required.
Worked example
Online specialist
Close to the real rate; small flat fee.
- Amount sent
- $200.00
- Visible flat fee
- $2.99
- Exchange-rate margin
- $1.80 (0.9% of amount)
- Total real cost
- $4.79
- Mid-market rate
- 1 USD = 17.1 MXN
- Arrives home
- $195.21 → 3,338.09 MXN
The formula, in plain language: total cost = flat fee + (amount × exchange-rate margin). What arrives = amount − total cost. We rank every option by what arrives, so the family keeps the most.
Assumptions for every option (illustrative)
| Method | Flat fee | FX margin | Speed |
|---|---|---|---|
| Mobile / app transfer | $1.99 | 0.5% | Minutes |
| Online specialist | $2.99 | 0.9% | Hours |
| Money-transfer shop | $8.00 | 2.0% | Same day |
| Bank wire | $25.00 | 3.0% | 1-3 days |
| Cash courier (informal) | $0.00 | 5.0% | Days |
bridge.fingerprint
$ fingerprint USD-MXN $200fnv1a64: c6a26317c029fd1ddeterministic · same inputs always produce this fingerprint
Rates are illustrative and for information only — not financial advice and not a live quote. Bridge takes no fee and moves no money.