Per-GB vs per-IP Proxy Calculator

This page adds two bills. It does not measure proxy quality, and it is not a quote. Residential and Corporate day rates default to $2. Mobile defaults to $4.50. Change the per-GB rate to the number on the other vendor's pricing page. Fair use still applies to Proxy Grove Unlimited plans.

How the arithmetic works

Per-GB total = gigabytes per day × days × price per GB. Per-IP total = IP count × days × price per IP per day. The lower number is the lower bill for that volume. It says nothing about whether the IP type matches the site.

Example that is already filled in: 20 GB a day for 30 days is 600 GB. At $3 per GB that is $1,800. Four residential IPs at $2 for 30 days is $240. Per-IP is lower. Change gigabytes per day to 0.2 and the per-GB bill becomes $18, so the gigabyte plan is lower.

Where the default $3 comes from

On 16 October 2026, public residential cards from Decodo were in a band around $2.75 to $4 per GB depending on the bucket. IPRoyal, Webshare, and Evomi publish their own bands. $3 is a round number inside that band so the form is not empty. Replace it. Do not treat $3 as those companies' current price.

When the cheaper bill is the wrong product

Buy per-GB when you need a very large shared pool, a ZIP or ASN target, or only a few gigabytes. Buy per-IP when a few exits will carry a heavy crawl, media review, or ad creative. Bright Data's ISP page, loaded the same day, still attaches a 100 GB fair-use allowance to an "unlimited" ISP plan. Proxy Grove's fair use is stated on the pricing FAQ. A plan can be the cheap one and still be the wrong network.

Work the examples by hand

Four residential IPs for 30 days at $2 is 4 × 2 × 30 = $240. That number does not move if each IP downloads 1 GB or 20 GB, until fair use. Twenty gigabytes a day for 30 days is 600 GB. At $2.75 per GB, a figure inside Decodo’s public 100 GB card as loaded on 16 October 2026, 600 GB is $1,650. At $0.49 per GB, the rate Evomi’s residential page was advertising the same day for a 100 GB plan, 600 GB is $294. $294 is close to $240, so the winner depends on the rate you type, not on a slogan.

One residential IP for 7 days is $14. Two gigabytes total at $4 per GB is $8. The gigabyte plan wins. This is why a light price check should not automatically buy a month of IPs.

One mobile IP for 30 days is 30 × $4.50 = $135. Forty gigabytes of video ads at $6 per GB is $240. The mobile day rate wins on that volume. Four megabytes of banners does not. Use residential at $2 if the ad is a desktop placement.

Ten corporate IPs for 90 days is 10 × $2 × 90 = $1,800. The same window at 2 GB per IP per day is 1,800 GB. Even at $1 per GB that is $1,800, a tie, and any higher gigabyte rate makes the day rate lower. Confirm the other vendor’s rate. Do not use the defaults as their price.

What this calculator leaves out

It does not include VAT, annual discounts, failed-request billing, or proxy bandwidth that a provider refuses to count. It does not include the cost of a blocked job that you have to rerun. It does not include Bright Data’s 100 GB per IP fair-use allowance on the ISP plan we loaded, or Decodo’s ISP fair-use note above 10 TB and 25 GB per IP. Proxy Grove’s own fair use is a real limit. If your job would trip it, the $240 figure is not the whole story. Ask before you scale concurrency.

It also leaves out pool size. A per-GB vendor selling tens of millions of rotating addresses is selling a different product from N allocated IPs. If the task needs a new address every request, the cheaper day rate on four IPs will not do that job. Read the Decodo, IPRoyal, and Webshare comparisons before you treat the lower number as the buying decision.

How to use the result

Save the two totals next to the byte log from your own client. If you have not run the job yet, run a one-day sample and replace the gigabytes-per-day field. Then choose Residential, Mobile, or Corporate on the product page, or stay with the per-GB vendor when that bill is lower and the pool matches the task. The pricing page remains the source for Proxy Grove’s day rate if this form is ever out of date.

Read a competitor page before you type the rate

Decodo’s residential cards, as loaded on 16 October 2026, were a monthly gigabyte bucket, not a day rate. A 25 GB card and a 100 GB card are different prices per gigabyte. Type the card you would actually buy, not the lowest number in a headline. Evomi’s residential page the same day showed $0.49 per GB on a 100 GB plan and a higher pay-as-you-go rate. Those are different products from four sticky IPs. Webshare and IPRoyal also sell gigabytes. Bart Proxies and Rayobyte sell per-IP ISP addresses, which is closer to this form’s second input. Bright Data’s ISP pricing page included a 100 GB fair-use allowance per IP on a plan it called unlimited. If you compare that plan, add the overage rules. This form will not do it for you.

TrueProxies sells unlimited residential capacity by the hour and by the megabit, starting around $4 for an hour at the low speed on the page we loaded. PrivateProxy’s unlimited rotating plan started at $2,499 a month. Neither number belongs in the per-GB field. If that is the product you are comparing, this calculator is the wrong worksheet.

A one-day sample is enough to fill the form

Run the job for one day on one IP. Record bytes received. Multiply by the number of days you will keep the IP and by the number of IPs. That is the gigabytes-per-day input only after you divide by days. People double-count here. If the sample was 8 GB in one day, the field is 8, not 8 times 30. The form multiplies by days itself.

Then ask whether fair use would allow that concurrency. A plan that is silent on threads is not a promise of hundreds of connections per IP. Proxy Grove’s pricing FAQ says fair use applies. If the job is hundreds of parallel browsers on one IP, the $2 line is not the constraint. The constraint is whether the endpoint stays up. The calculator does not know that.

After the numbers are honest, open pricing if per-IP is lower, or stay with the gigabyte vendor if it is lower and you need their pool. The guides on scraping, media review, price monitoring, ad checks, and public social pages walk through the same split with different byte weights.