Mobile data per day:
turning a monthly pack into a daily allowance

A pack is a budget with a deadline

Mobile plans come in two shapes. Some give a fixed daily quota that resets every midnight, such as 1.5 GB a day. Others give one big allowance, such as 60 GB, that you may spend at any pace until the validity ends. The second type is more flexible, and also easier to run out of too soon.

To manage it, convert the lump sum into a per-day figure. That gives you a yardstick: if you use more than the figure on a typical day, you are borrowing from the later days of the pack.

The same sum helps when you compare plans. A 'bigger' pack may be smaller per day if it is valid for longer, and a daily-quota pack might waste data you did not use before midnight.

The formula, with GB and MB handled

To convert gigabytes to megabytes, operators and phones usually either use 1 GB = 1,000 MB (decimal) or 1 GB = 1,024 MB (binary). The gap is 2.4%, which for a 60 GB pack is about 1.4 GB. Your phone's data counter and your operator's meter may follow different conventions, so allow a little margin.

Worked example: 60 GB over 28 days

Now check the pace partway through. After 18 days, you have used 40 GB, so 20 GB remains for the last 10 days. Your pace so far is 40 ÷ 18 = 2.22 GB a day, slightly above the plan, and the remaining budget works out to 20 ÷ 10 = 2.0 GB a day. You are only 0.14 GB a day over, so a small cut in the last stretch fixes it.

That recalculation is the key habit. A budget that you divide once on day one drifts away from reality by day ten; one you re-divide each day corrects itself.

Common pack sizes in a table

To go the other way, divide the total by the days. The 84 GB pack over 28 days gives 3 GB a day, the same as a 3 GB-a-day plan with a daily reset, but the lump sum lets you save unused data for a heavy day.

Comparing plans by price per GB

A pack's headline price says little until it is divided by its data. With illustrative prices (check current offers, which change often), a ₹299 pack with 1.5 GB a day for 28 days gives 42 GB, and a ₹349 pack with 2 GB a day for 28 days gives 56 GB.

Per-GB value is only half the story, since unused data is free to nobody. Pick the smallest pack that covers your typical use with a margin, and check that extras such as streaming subscriptions are not what you are really paying for.

What actually eats the quota

Streaming video is the main drain. Standard-definition video typically uses somewhere around half a gigabyte to one gigabyte an hour, and HD can use several times that; the exact figure depends on the app, the resolution and the compression. Music streaming is far lighter, typically tens of megabytes an hour at normal quality.

• Video platforms with autoplay and high default quality.
• App and operating-system updates, which can run to hundreds of megabytes each.
• Cloud backup of photos and videos, especially on mobile data.
• Video calls, which use steadily for as long as they last.
• Hotspot sharing, where a laptop's background updates can burn a day's quota in minutes.

A quick test is to check the per-app data usage screen in your phone's settings for a week. Two or three apps normally account for most of the total.

Turning a budget into hours

Gigabytes are abstract; hours of video are not. If an hour of standard-definition video takes about 0.7 GB on your service (a rough, assumed figure), a 2.14 GB daily budget buys about 3 hours of it and nothing else.

Measure the real figures from your own phone's usage screen: watch an hour of your usual app and see how much the counter moves. That one measurement is worth more than any rule of thumb.

Making the allowance last

1. 1Set a data warning on the phone at about 80% of the pack, and a limit just above it.
2. 2Download maps, playlists and shows over Wi-Fi so the mobile quota is kept for what only mobile can do.
3. 3Lower the default streaming quality in the apps that use the most.
4. 4Turn off auto-play and background app refresh on mobile data.
5. 5Disable automatic updates on mobile data, keeping them for Wi-Fi.

If you regularly exceed the daily figure, check whether a pack with a larger daily quota, or a longer validity, is cheaper per GB than topping up. Prices change by operator, so compare current offers rather than relying on old ones.