According to an Omni Calculator survey, more than 6 in 10 Americans use AI for calculations, and about 1 in 3 of them say they've gotten a wrong answer from it at some point. Despite that, more than half still trust AI for math, while the other half remains skeptical.
That trust doesn't run very deep, though. Only 2 in 10 users trust AI "completely," meaning they expect it to be right 90-100% of the time. Nearly half, 46%, only trust it in the 60-90% range, and 34% trust it just slightly or not at all.
What's interesting is that not everyone fits neatly into the "trust it" or "don't trust it" camps. In the same survey, 28% of people who were asked why they distrust AI answered that they actually don't, at least not when it comes to calculations specifically. So even people who are wary of AI in general seem willing to make an exception for math.
The second most common reason for not trusting AI with calculation for younger generations was their fear of losing their own calculation skills; 46% of Gen Z and 33% of Millennials compared to 20% of Gen X and Boomers. The learning angle makes the gap even clearer. 54% of Gen Z said they use AI because it explains the steps behind a problem, versus only 14% of Boomers.
For Gen Z, AI functions almost like a tutor sitting next to them. For Boomers, it's more of a specialized tool they reach for occasionally, and when they do, they seem to trust it more than younger users do.
AI also gets used for things a regular calculator was never built to handle, like working through word problems or adding context around numbers. Some respondents mentioned using it to think through spending, debt, or interest, since it can walk through the reasoning in a way a plain calculator can't: “I calculate specific things... such as spending/earning, and it gives me more context on those than calculators.” A handful of people also brought up simple conversions, like currency or metric to imperial, saying AI is often quicker than hunting down the right tool.
Even with all that, 38% of Americans now say AI tools are what they use most for calculations, edging out traditional calculators (37%), online calculators (13%), spreadsheets (10%), and pen and paper (2%). Age still shapes which tool people reach for. Gen Z (48%) is about twice as likely as Boomers (22%) to use conversational AI tools like ChatGPT or Copilot, while Boomers lean toward specialized online calculators for things like taxes or mortgages, using them roughly three times as often as Millennials or Gen Z.
That instability shows up in three ways: a wrong answer turns into a different wrong answer, a correct answer flips to wrong, or a wrong answer happens to land on the right one. In testing, ChatGPT changed its answer 65% of the time when asked to redo a mistake, and the new answer was still often incorrect. DeepSeek was the least stable of the group, changing its output 69% of the time, while Gemini and Grok came in at 46% and 55%.
The reason comes down to how these systems actually work. A regular calculator follows fixed rules, so the same input always produces the same output. AI models, on the other hand, are predicting the next likely word rather than performing a calculation the way a calculator does, which means the answer can shift even when nothing about the question changed.
For anything involving real money, taxes, a mortgage, or retirement planning, it's still safer to use a dedicated calculator than a conversational AI model, particularly ones like DeepSeek or Grok that showed instability rates as high as 69% in testing. Right now, people are adopting AI for math faster than they're learning to actually trust it, and until these tools can match the consistency of a regular calculator, they're better treated as a second opinion than a first one.
Author bio: Reyhaneh Mansouri is a research writer and digital PR specialist at Omni Calculator, where she turns data into stories that help people and journalists. She uses her experience as an academic researcher to create original studies. Email contact: rey.mansouri@omnicalculator.com.
Editor's note: This guest article reflects the author's analysis and interpretations and is based on information supplied by the author.
Edited by Irfan Ahmad.
Read next:
• Google's AI Search Has Struggled With One Caliph Answer for Years
• Why turning off screens is so hard for children – and four tips to make it easier
• Is Your Government or Organization Ready to Prevent AI Cyber Attacks—at Scale?
That trust doesn't run very deep, though. Only 2 in 10 users trust AI "completely," meaning they expect it to be right 90-100% of the time. Nearly half, 46%, only trust it in the 60-90% range, and 34% trust it just slightly or not at all.
Why People Don't Trust It
People doubt AI calculations for several reasons; 57% of respondents said they don't fully trust AI because it can simply make mistakes, 14% pointed to privacy concerns, and 13% can’t trust it simply because they do not understand how AI arrives at its answers in the first place. The other 30% are worried that leaning on it too much will make them worse at math themselves.What's interesting is that not everyone fits neatly into the "trust it" or "don't trust it" camps. In the same survey, 28% of people who were asked why they distrust AI answered that they actually don't, at least not when it comes to calculations specifically. So even people who are wary of AI in general seem willing to make an exception for math.
Younger People Fear Losing Their Skills Over AI
There's a real generation gap here, which was predictable. Gen Z uses AI for calculations more than others; 73% compared to 63% of Millennials, 58% of Gen X, and 55% of Boomers.The second most common reason for not trusting AI with calculation for younger generations was their fear of losing their own calculation skills; 46% of Gen Z and 33% of Millennials compared to 20% of Gen X and Boomers. The learning angle makes the gap even clearer. 54% of Gen Z said they use AI because it explains the steps behind a problem, versus only 14% of Boomers.
For Gen Z, AI functions almost like a tutor sitting next to them. For Boomers, it's more of a specialized tool they reach for occasionally, and when they do, they seem to trust it more than younger users do.
What People Actually Use AI For
A lot of the reported use isn't about getting a fast answer so much as checking one. Several respondents said they use AI to verify math they've already done by hand, which says something about the level of trust here: enough to use the tool, not quite enough to fully rely on it. As one respondent to the survey put it: "It can check my work."AI also gets used for things a regular calculator was never built to handle, like working through word problems or adding context around numbers. Some respondents mentioned using it to think through spending, debt, or interest, since it can walk through the reasoning in a way a plain calculator can't: “I calculate specific things... such as spending/earning, and it gives me more context on those than calculators.” A handful of people also brought up simple conversions, like currency or metric to imperial, saying AI is often quicker than hunting down the right tool.
Even with all that, 38% of Americans now say AI tools are what they use most for calculations, edging out traditional calculators (37%), online calculators (13%), spreadsheets (10%), and pen and paper (2%). Age still shapes which tool people reach for. Gen Z (48%) is about twice as likely as Boomers (22%) to use conversational AI tools like ChatGPT or Copilot, while Boomers lean toward specialized online calculators for things like taxes or mortgages, using them roughly three times as often as Millennials or Gen Z.
Why AI Still Gets Math Wrong
This is really the part that explains everything above it. Omni Calculator's ORCA benchmark looked at what they call the instability metric, which tracks how often an AI gives a different answer when asked the exact same question twice, even when the original answer was wrong to begin with.That instability shows up in three ways: a wrong answer turns into a different wrong answer, a correct answer flips to wrong, or a wrong answer happens to land on the right one. In testing, ChatGPT changed its answer 65% of the time when asked to redo a mistake, and the new answer was still often incorrect. DeepSeek was the least stable of the group, changing its output 69% of the time, while Gemini and Grok came in at 46% and 55%.
The reason comes down to how these systems actually work. A regular calculator follows fixed rules, so the same input always produces the same output. AI models, on the other hand, are predicting the next likely word rather than performing a calculation the way a calculator does, which means the answer can shift even when nothing about the question changed.
What This Means Going Forward
None of this means AI is useless for math, but it does mean the "just ask AI" instinct needs a bit of a check. Using it to understand the steps of a problem, the way over half of Gen Z already does, is a reasonable habit. Treating whatever number it spits out as final is not, especially since a "corrected" answer isn't automatically the right one; 65% of the time, ChatGPT's corrected answers were still wrong.For anything involving real money, taxes, a mortgage, or retirement planning, it's still safer to use a dedicated calculator than a conversational AI model, particularly ones like DeepSeek or Grok that showed instability rates as high as 69% in testing. Right now, people are adopting AI for math faster than they're learning to actually trust it, and until these tools can match the consistency of a regular calculator, they're better treated as a second opinion than a first one.
Methodology
This article is based on a survey done by Omni Calculator of 1,014 U.S. adults in 2026, representative across age groups and regions. Respondents were asked about their use of AI for calculations, their trust in AI, their reasons for using or avoiding it, and their experiences with incorrect results. Data was analyzed by age and region, and statistical significance was checked using the Chi-squared test. Results were also compared against Omni's ORCA benchmark to add context around AI accuracy.Author bio: Reyhaneh Mansouri is a research writer and digital PR specialist at Omni Calculator, where she turns data into stories that help people and journalists. She uses her experience as an academic researcher to create original studies. Email contact: rey.mansouri@omnicalculator.com.
Editor's note: This guest article reflects the author's analysis and interpretations and is based on information supplied by the author.
Edited by Irfan Ahmad.
Read next:
• Google's AI Search Has Struggled With One Caliph Answer for Years
• Why turning off screens is so hard for children – and four tips to make it easier
• Is Your Government or Organization Ready to Prevent AI Cyber Attacks—at Scale?
