Convert CO₂e to Streaming Hours
| t CO₂e | streaming hours |
|---|---|
| 0.5 | 13,889 |
| 1 | 27,778 |
| 1.5 | 41,667 |
| 2 | 55,556 |
| 3 | 83,333 |
| 5 | 138,889 |
| 10 | 277,778 |
| 20 | 555,556 |
| 50 | 1,388,889 |
| 100 | 2,777,778 |
Each row uses the same factor as the converter above: 1 t CO₂e = 27,778 streaming hours.
Get one email when the source dataset revises this number: old → new, and what it means.
Expressing a CO₂e figure as hours of video streaming is a vivid way to picture it — and a useful corrective to some widely-repeated myths. This converter uses the International Energy Agency’s estimate: an hour of streaming emits about 36 grams of CO₂e (0.000036 tonnes) on a global average, counting the whole chain from data centre to your screen. So a CO₂e total divided by that factor gives the equivalent hours of viewing. The factor is read live from the GreenCalculus MasterBrain and cited to the IEA. It is a communication device — useful for perspective, not for greenhouse-gas accounting itself.
To convert CO₂e to streaming hours, divide the CO₂e (in tonnes) by 0.000036 — the emissions of one hour of video streaming (IEA). Equivalently, multiply by about 27,778. So 1 t CO₂e ≈ 27,778 hours and 1 kg ≈ 28 hours. Multiply hours by 0.000036 to reverse it.
hours = tonnes CO₂e ÷ 0.000036 (≈ tonnes CO₂e × 27,778). Reverse: tonnes CO₂e = hours × 0.000036. The 0.000036 tonnes (36 g) is the CO₂e of one viewing hour end-to-end; the converter reads it live from the MasterBrain, so it updates if the estimate is revised.
| CO₂e | × 27,778 | Streaming hours |
|---|---|---|
| 0.000036 t (36 g) | × 27,778 | 1 hour |
| 0.001 t (1 kg) | × 27,778 | 28 hours |
| 0.036 t | × 27,778 | 1,000 hours |
| 1 t CO₂e | × 27,778 | 27,778 hours |
Headlines once claimed an hour of streaming emitted over a kilogram of CO₂ — “the same as driving several miles.” Those figures were overestimates, built from out-of-date energy intensities. The IEA’s fact-check put the real number an order of magnitude lower, at roughly 36 grams an hour. Streaming has a footprint, but a modest one; the biggest lever is the device you watch on, not the video quality.
How the equivalency works
The number comes from the International Energy Agency’s analysis of streaming’s carbon footprint, published to correct a wave of exaggerated headlines. It totals the emissions across three stages: the data centre that stores and serves the video, the network that transmits it, and the viewing device that plays it.
Where 36 grams comes from
The IEA’s central estimate is about 36 gCO₂ for an hour of streaming on a 2019 global-average grid — revised down from an original 82 grams once data-centre and network energy figures were brought up to date. The viewing device dominates the total, which is why a big TV costs more than a phone, and why switching from 4K to standard definition changes the footprint only slightly. It is a global average; a cleaner grid emits less.
0.000036 tonnes CO₂e — 36 g — per hour of video streaming (IEA, Kamiya 2020; 2019 global average, end-to-end). It is operational only — the electricity to run the device, network and data centre — and excludes the emissions of manufacturing the hardware. The Carbon Trust’s 2021 European estimate is higher, around 55 g an hour; the range reflects different grids and methods.
CO₂e to streaming-hours conversion table
The table reads both ways. The left half converts a CO₂e figure to hours (÷ 0.000036); the right half converts hours of viewing back to CO₂e (× 0.000036).
| t CO₂e | → hours (÷ 0.000036) | hours | → t CO₂e (× 0.000036) |
|---|---|---|---|
| 0.001 (1 kg) | 28 | 100 | 0.0036 |
| 0.01 | 278 | 1,000 | 0.036 |
| 0.1 | 2,778 | 10,000 | 0.36 |
| 1 | 27,778 | 100,000 | 3.6 |
| 10 | 277,778 | 1,000,000 | 36 |
What the “streaming hours” figure does and doesn’t mean
Equivalencies are powerful for communication and easy to misuse. Three caveats keep the comparison honest.
The device dominates
Most of streaming’s footprint is the screen you watch on, not the servers or the network. Watching on a 50-inch TV uses far more power than the same show on a phone, and the data centre’s share is small. That is also why video resolution barely moves the number — the myth that dropping to standard definition is a big climate win doesn’t hold up.
It’s a global average
The 36-gram figure uses a 2019 global-average grid intensity. Stream on a renewables-heavy grid and the number falls; on a coal-heavy one it rises. Estimates from other bodies differ — the Carbon Trust’s European figure is around 55 grams — so treat 36 grams as a well-sourced central estimate, not a precise constant, and note the basis when you use it.
It’s for communication, not accounting
An equivalency is a way to describe a CO₂e figure, not a way to calculate one. This converter turns a CO₂e total you already have into a relatable number of viewing hours — it does not estimate the emissions of your own streaming. A real estimate multiplies hours by the data rate, the network and device energy, and your grid’s carbon intensity — the method behind the CO₂ equivalencies methodology.
Where the conversion is used
- Reporting and communication. Framing a footprint, a reduction or an offset in a unit people relate to — “this year’s cut is like 300,000 hours of streaming.”
- Myth-busting. Putting the “streaming is destroying the planet” headlines in proportion against a well-sourced figure.
- Alongside other digital equivalencies. Streaming sits with AI queries and smartphone charges; the CO₂ equivalencies calculator converts a figure into many units at once (method: the CO₂ equivalencies methodology).
Enter the CO₂e in tonnes, not kilograms — the 0.000036 factor is per tonne. If your figure is in kilograms, divide by 1,000 first. And always name the basis: “≈ N hours of streaming (IEA, global average)” tells the reader exactly what the comparison rests on.
Frequently Asked Questions
Divide the CO₂e (in tonnes) by 0.000036, the emissions of one hour of video streaming — equivalently, multiply by about 27,778. For example, 1 tonne CO₂e ÷ 0.000036 ≈ 27,778 hours. To reverse it, multiply the hours by 0.000036.
About 36 grams of CO₂e (0.000036 tonnes) on a global average, per the IEA — counting the data centre, the network and the viewing device. The device is the largest part. A cleaner grid or a smaller screen emits less.
No — that was a myth. Early viral figures claimed an hour of streaming emitted over a kilogram of CO₂, “like driving several miles.” The IEA’s fact-check found those were overestimates built on out-of-date energy data; the real figure is roughly 36 grams an hour, about an order of magnitude lower.
Only a little. Higher resolutions raise the data rate, but transmission is a small share of the total and the network scales efficiently. The viewing device dominates, so the screen you watch on matters far more than the video quality. Dropping to standard definition saves very little carbon.
From the International Energy Agency’s 2020 analysis (George Kamiya), “The carbon footprint of streaming video: fact-checking the headlines.” Its central estimate is 36 gCO₂ per hour on a 2019 global-average grid, revised down from an original 82 grams. The converter reads it live from the MasterBrain and cites the IEA.
The Carbon Trust’s 2021 study gives about 55 gCO₂e per hour on a European-average basis. The difference from the IEA’s 36 g comes down to different grids (European vs global), years and methods. We store the IEA global figure and note the Carbon Trust value as the higher end of the range.
No. The figure is operational only — the electricity to run the device, network and data centre while you watch. It excludes the emissions of manufacturing the hardware, which for a device used over many years are counted separately.
No — an equivalency describes a CO₂e figure, it doesn’t calculate one. To estimate the emissions of real streaming you would combine hours, data rate, device and network energy, and a grid factor. Use this converter only to make an existing CO₂e number relatable in a report or presentation.