Direct Air Capture (DAC) Cost Calculator
Direct air capture (DAC) pulls CO2 directly from ambient air rather than from a concentrated industrial flue gas stream, making it the most flexible form of carbon capture -- it can be sited anywhere and can remove emissions that have already reached the atmosphere. That flexibility comes at a steep cost premium, because ambient air is far more dilute in CO2 than flue gas. This calculator takes an annual CO2 removal target and a DAC cost per ton, then reports the total annual DAC cost. It pairs naturally with our CO2 Capture Cost Calculator for a direct comparison to point-source capture costs, and our 45Q Tax Credit Calculator for the higher per-ton federal credit ($180/ton) that DAC projects qualify for.
Representative of a large first-of-a-kind (FOAK) DAC facility scale.
DAC cost estimates vary enormously by technology maturity and source -- current commercial prices often exceed $500/ton, published cost-modeling studies commonly cite a $150-600+/ton range depending on assumptions, and industry targets aim for costs below $100/ton at scale by 2050, though many analysts view that target as optimistic given the fundamental thermodynamics of separating dilute CO2 from ambient air.
annual CO2 removal target (tons/year) × DAC cost ($/ton)
Results update live as you type. For planning and field-check estimates — always verify against applicable standards and equipment ratings.
How we calculate this →DAC costs 5-10 times more per ton than capturing CO2 from a concentrated industrial flue gas -- and for good reason: ambient air is roughly 0.04% CO2 by volume, compared to 5-15% in a typical power plant flue gas, meaning DAC systems must process vastly more air to capture the same amount of CO2. At $400/ton in this example, removing 100,000 tons a year costs $40 million annually. This wide cost gap is exactly why DAC is generally viewed as a technology for hard-to-abate residual emissions and legacy atmospheric CO2 removal, rather than a substitute for point-source capture wherever concentrated emissions sources are available to capture directly.
How direct air capture (DAC) cost is calculated
This calculator estimates the annual cost of removing CO2 directly from ambient air using direct air capture (DAC) by multiplying an annual CO2 removal target by a DAC cost per ton. One quantity ties the calculation together.
Total Annual DAC Cost ($/year) = Annual CO2 Removal Target (tons/year) × DAC Cost ($/ton). The DAC cost per ton captures the all-in cost of pulling CO2 from ambient air -- the energy to move and process enormous air volumes, the sorbent or solvent materials and their regeneration, compression, and balance of plant -- expressed per ton of CO2 removed. At the defaults (100,000 tons/year and $400/ton), that is 100,000 × $400 = $40,000,000/year.
Two notes on the model. First, the DAC cost per ton is the single most consequential input, and it varies enormously by technology maturity and source: current commercial DAC prices often exceed $500/ton, published cost-modeling studies commonly cite a $150-600+/ton range depending on assumptions, and industry targets aim for costs below $100/ton at scale by 2050 -- though many analysts view that target as optimistic given the fundamental thermodynamics of separating dilute CO2 from ambient air (ambient air is roughly 0.04% CO2 by volume, compared to 5-15% in a typical power plant flue gas), so the editable field lets you substitute a source-specific figure. Second, this calculator covers the direct DAC removal cost only and does not model the downstream transport and permanent storage or utilization cost components (addressed by the CO2 Transport Cost Calculator and CO2 Storage/Sequestration Cost Calculator), or the 45Q tax credit value that can offset a meaningful share of the cost -- DAC projects qualify for a higher $180/ton federal credit under Section 45Q, compared to $85/ton for point-source capture, reflecting DAC's higher cost and its role in removing legacy atmospheric CO2. For a direct comparison to the much lower cost of capturing CO2 from a concentrated flue gas stream, see the CO2 Capture Cost Calculator; for the federal credit that can offset DAC costs, see the 45Q Tax Credit Calculator. Data sources: DAC cost ranges and technology assessments from DOE (Department of Energy), NREL (National Renewable Energy Laboratory), and IEA (International Energy Agency) direct air capture technology assessments; liquid solvent and solid sorbent DAC technology descriptions from DOE and industry technical reports; ambient air vs. flue gas CO2 concentration comparison from IPCC (Intergovernmental Panel on Climate Change) and IEAGHG technical reports; Section 45Q DAC credit rate ($180/ton) from the One Big Beautiful Bill Act (OBBBA) and 26 U.S.C. 45Q. Verification: with defaults (100,000 tons/year, $400/ton), Total Annual DAC Cost = $40,000,000/year.