The Debt Sphere: Track the U.S. National Debt in Real Time, Back to 2005
The Debt Sphere is a free interactive U.S. national debt tracker built entirely on official U.S. Department of the Treasury data. Instead of a single number on a debt clock, it shows the whole picture at once: how much the federal government owes, who it owes it to, how close it is to the statutory debt limit, and how much cash the Treasury has on hand. The sphere grows and shrinks with the national debt using Treasury's Debt to the Penny figures, updated each business day. Its gold surface is debt held by the public, owed to investors such as individuals, banks, mutual funds, state and local governments and foreign governments. Its blue surface is intragovernmental debt, the money the government owes its own trust funds, including Social Security and federal retirement programs.
A gold shell around the sphere marks the debt ceiling set by Congress, so you can see at a glance how much borrowing room remains. A small moon in orbit tracks the Treasury General Account, the government's main cash balance at the Federal Reserve, drawn from the Daily Treasury Statement. The moon turns red when cash runs low, which often happens during debt ceiling standoffs, one of the clearest warning signs of a looming default deadline.
How to use it
Drag the sphere left, or move the timeline slider, to travel back through actual Treasury figures to October 2005. Watch the federal debt climb through the 2008 financial crisis, the 2011 and 2023 debt ceiling battles and the 2020 pandemic response, and see how the balance between public and intragovernmental debt has shifted. Let go and it stays on that date. Drag right to look up to 10 years ahead: future dates carry a red projection stamp because they are GENM estimates, not Treasury data. Choose the historical growth rate since 2005, or set your own daily borrowing pace to see when the debt would pass the current limit. Share any date with a link, or save the view as an image for a report, class or post.
Why it matters
The size and makeup of the national debt affect Treasury bond supply, interest costs in the federal budget, and the timing of debt ceiling deadlines that can move markets. The Debt Sphere gives investors, advisors, journalists, students and teachers a fast, visual way to understand those trends and check them against the original source. Every historical figure comes from the U.S. Department of the Treasury's Debt to the Penny and Daily Treasury Statement datasets. The ticking total between Treasury updates, the debt limit headroom and all future values are GENM calculations, provided for education and not as financial advice.
GENM · The debt sphereLoading Treasury data…
$40,068,807,991,925
Loading the latest Treasury data…
PROJECTIONGENM estimate · not Treasury data
HISTORICALU.S. Treasury data
← Drag to travel through time →
● Held by the public ● Intragovernmental ◯ Debt limit shell — U.S. outline
Timeline
Public · GENM-002
$32.36T
Intragov · GENM-003
$7.71T
Limit headroom · est.
$1.21T
Cash · GENM-005
$925B
Projection method
Your own pace (daily borrowing)$6.1B/day
Source: U.S. Department of the Treasury, Debt to the Penny and Daily Treasury StatementSphere size is schematic · projections are GENM estimates
Projections are GENM estimates. By default they grow at the average annual rate of total public debt since October 2005, calculated from U.S. Treasury data; you can switch to a fixed daily borrowing pace of your choice. They assume the chosen growth continues and that the debt limit is raised as needed. The historical rate includes crisis periods such as 2008 and 2020, so it assumes growth like that continues. They are not Treasury data, not a forecast, and not financial advice. Do not rely on them for investment or financial decisions. Past dates show U.S. Treasury figures for that date. U.S. outline: simplified from U.S. Census Bureau 2017 cartographic boundary files (via the us-atlas package). The outline is illustrative, not data.
The Debt Sphere: Track the U.S. National Debt in Real Time, Back to 2005
The Debt Sphere is a free interactive U.S. national debt tracker built entirely on official U.S. Department of the Treasury data. Instead of a single number on a debt clock, it shows the whole picture at once: how much the federal government owes, who it owes it to, how close it is to the statutory debt limit, and how much cash the Treasury has on hand. The sphere grows and shrinks with the national debt using Treasury's Debt to the Penny figures, updated each business day. Its gold surface is debt held by the public, owed to investors such as individuals, banks, mutual funds, state and local governments and foreign governments. Its blue surface is intragovernmental debt, the money the government owes its own trust funds, including Social Security and federal retirement programs.
A gold shell around the sphere marks the debt ceiling set by Congress, so you can see at a glance how much borrowing room remains. Below the sphere, live readouts show debt held by the public, intragovernmental debt, remaining room under the limit and the Treasury General Account, the government's main cash balance at the Federal Reserve, drawn from the Daily Treasury Statement. The cash balance often drops sharply during debt ceiling standoffs, one of the clearest warning signs of a looming default deadline.
How to use it
Drag the sphere left, or move the timeline slider, to travel back through actual Treasury figures to October 2005. Every readout updates to that date as you go. Watch the federal debt climb through the 2008 financial crisis, the 2011 and 2023 debt ceiling battles and the 2020 pandemic response, and see how the balance between public and intragovernmental debt has shifted. Let go and it stays on that date. Drag right to look up to 10 years ahead: future dates carry a red projection stamp because they are GENM estimates, not Treasury data. Choose the historical growth rate since 2005, or set your own daily borrowing pace to see when the debt would pass the current limit. Share any date with a link, or save the view as an image for a report, class or post.
Why it matters
The size and makeup of the national debt affect Treasury bond supply, interest costs in the federal budget, and the timing of debt ceiling deadlines that can move markets. The Debt Sphere gives investors, advisors, journalists, students and teachers a fast, visual way to understand those trends and check them against the original source. Every historical figure comes from the U.S. Department of the Treasury's Debt to the Penny and Daily Treasury Statement datasets. The ticking total between Treasury updates, the debt limit headroom and all future values are GENM calculations, provided for education and not as financial advice.