# How to calculate the minimum when using multiple addresses

BlockBee supports multi-addresses. This means that we can send your funds up to 20 different addresses. Though the higher the number of addresses, higher the minimum of the transaction.

## Formula

The minimum is calculated using this formula:

```
1 + (N - 1) / 3
```

where **N** is the number of output addresses.

## Example Calculation

Say you want to use 2 addresses. You do the calculation like this:

```
1 + (2 - 1) / 3 = 1.33
```

This is a percentual value that you should add to the minimum transaction that you can find in our [cryptocurrencies page](https://blockbee.io/cryptocurrencies/). For example, with Bitcoin it should be like this:

```
0.00008 × 1.33 = 0.0001064 BTC
```

## Important Notes

> **WARNING**
>If the percentage that you want to send is too small, say like 1%, it may fail in some cryptocurrencies due to the **dust threshold** (the minimum possible to transact in those blockchains). These are:
> - **BTC & BCH**: 546 satoshi
> - **LTC**: 5460 litoshi


> **WARNING**
>**Warning**: If you proceed with a transaction lower than the minimum, BlockBee will ignore the transaction and we won't be able to recover the funds.


## Minimum Value Tables

### Bitcoin

{% styledTable variant="striped" %}

| Num. of addrs | Multiplier | Min. Value |
|--------------|------------|------------|
| 1 | 1 | 0.00008 BTC |
| 2 | 1.33 | 0.0001064 BTC |
| 3 | 1.67 | 0.0001336 BTC |
| 4 | 2 | 0.00016 BTC |
| 5 | 2.33 | 0.0001864 BTC |
| 6 | 2.67 | 0.0002136 BTC |
| 7 | 3 | 0.00024 BTC |
| 8 | 3.33 | 0.0002664 BTC |
| 9 | 3.67 | 0.0002936 BTC |
| 10 | 4 | 0.00032 BTC |

{% /styledTable %}

### Ethereum

{% styledTable variant="striped" %}

| Num. of addrs | Multiplier | Min. Value |
|--------------|------------|------------|
| 1 | 1 | 0.00150000 ETH |
| 2 | 1.33 | 0.001995 ETH |
| 3 | 1.67 | 0.002505 ETH |
| 4 | 2 | 0.003 ETH |
| 5 | 2.33 | 0.003495 ETH |
| 6 | 2.67 | 0.004005 ETH |
| 7 | 3 | 0.0045 ETH |
| 8 | 3.33 | 0.004995 ETH |
| 9 | 3.67 | 0.005505 ETH |
| 10 | 4 | 0.006 ETH |

{% /styledTable %}

### TRC-20 - USDT

{% styledTable variant="striped" %}

| Num. of addrs | Multiplier | Min. Value |
|--------------|------------|------------|
| 1 | 1 | 10 USDT |
| 2 | 1.33 | 13.3 USDT |
| 3 | 1.67 | 16.7 USDT |
| 4 | 2 | 20 USDT |
| 5 | 2.33 | 23.3 USDT |
| 6 | 2.67 | 26.7 USDT |
| 7 | 3 | 30 USDT |
| 8 | 3.33 | 33.3 USDT |
| 9 | 3.67 | 36.7 USDT |
| 10 | 4 | 40 USDT |

{% /styledTable %}