Microeconomics
Tariff Revenue and Welfare Calculator
Estimate tariff revenue and simple deadweight loss from reduced imports.
Inputs and results stay in this browser. Currency symbols are illustrative; use any consistent currency.
Understand Tariff welfare
One idea, three depths
Choose how deeply to explain Tariff welfare
Tariff welfare: Estimate tariff revenue and simple deadweight loss from reduced imports.
Age 5Explain it to a 5-year-oldStart with a picture
Imagine using Tariff welfare to answer this question: estimate tariff revenue and simple deadweight loss from reduced imports? Enter Tariff per imported unit, Imports before tariff, Imports after tariff; the calculator shows Tariff revenue. Try changing one number and watch what happens to Tariff revenue. The answer tells you Tariff revenue.
Age 15Explain it to a 15-year-oldConnect it to the formula
This partial-equilibrium approximation excludes retaliation, terms-of-trade effects and wider market adjustments. The rule is Revenue = Tariff × post-tariff imports; DWL ≈ ½ × tariff × import reduction. Its input values are Tariff per imported unit, Imports before tariff, Imports after tariff, and the main result is Tariff revenue. Try changing one number and watch what happens to Tariff revenue.
CollegeExplain it at college levelState the model precisely
This calculator evaluates a microeconomics relationship while holding unmodelled conditions constant. The implemented relation is Revenue = Tariff × post-tariff imports; DWL ≈ ½ × tariff × import reduction, evaluated from Tariff per imported unit, Imports before tariff, Imports after tariff to produce Tariff revenue. This partial-equilibrium approximation excludes retaliation, terms-of-trade effects and wider market adjustments. The result depends on comparable definitions, units, populations and time periods. It estimates a relationship; it does not establish causation or replace current primary data.
The economic question
Estimate tariff revenue and simple deadweight loss from reduced imports.
Why this relationship is useful
This partial-equilibrium approximation excludes retaliation, terms-of-trade effects and wider market adjustments.
Inputs that must be comparable
- Tariff per imported unit (minimum 0).
- Imports before tariff (minimum 0).
- Imports after tariff (minimum 0).
Use one market, firm, population and time period throughout; mixing definitions can make a correctly calculated number economically meaningless.
The model
Revenue = Tariff × post-tariff imports; DWL ≈ ½ × tariff × import reduction
From inputs to output
The calculator combines Tariff per imported unit, Imports before tariff, Imports after tariff and reportsTariff revenue together with Approximate deadweight loss. Change one assumption at a time to identify what actually drives the estimate.
How to read Tariff revenue
Read the sign, magnitude, unit and period together. The result quantifies the relationship in “estimate tariff revenue and simple deadweight loss from reduced imports”; it does not by itself prove that one input caused another.
Where interpretation can fail
Do not use the result when the input definitions, units or formula assumptions do not match the real situation. This is an educational model, not financial, investment, tax or policy advice; verify material decisions against primary data and professional guidance.
Supporting sourcesAcademic referencesPrimary standards, textbooks and complete citations
Standards, reading and academic references
Use the calculator as the worked interaction, then consult the primary standards and academic textbooks listed below. MW SysArc links to the original sources; the explanation on this page is original and does not reproduce them.
Principles of Economics 3e
Read the free OpenStax economics textbookCite this book
- APA 7
- Greenlaw, S. A., Shapiro, D., & MacDonald, D. (2022). Principles of economics 3e. OpenStax. https://openstax.org/books/principles-economics-3e/pages/1-introduction
- MLA 9
- Greenlaw, Steven A., et al. Principles of Economics 3e. OpenStax, 2022, https://openstax.org/books/principles-economics-3e/pages/1-introduction.
- Chicago author-date
- Greenlaw, Steven A., David Shapiro, and Daniel MacDonald. 2022. Principles of Economics 3e. Houston, TX: OpenStax. https://openstax.org/books/principles-economics-3e/pages/1-introduction.
OpenStax entries are free to read online. Follow the licence shown on each linked source before redistributing or adapting its content.
Reuse the page responsiblyCite this pageAPA, MLA, Chicago, Harvard, BibTeX and RIS
These formats cite this calculator page itself. They are separate from the academic references above, which support the mathematical method and terminology.
APA 7
MW SysArc. (2026, July 21). Tariff Revenue and Welfare Calculator. MW SysArc Tools. https://economics.mwsysarc.com/micro/tariff-revenue-and-welfare
MLA 9
MW SysArc. “Tariff Revenue and Welfare Calculator.” MW SysArc Tools, 21 July 2026, https://economics.mwsysarc.com/micro/tariff-revenue-and-welfare. Accessed 31 Aug. 2026.
Chicago 17
MW SysArc. “Tariff Revenue and Welfare Calculator.” MW SysArc Tools. Published July 21, 2026. Accessed August 31, 2026. https://economics.mwsysarc.com/micro/tariff-revenue-and-welfare.
Harvard
MW SysArc (2026) ‘Tariff Revenue and Welfare Calculator’, MW SysArc Tools. Published 21 July 2026. Available at: https://economics.mwsysarc.com/micro/tariff-revenue-and-welfare (Accessed: 31 August 2026).
BibTeX and RIS records
BibTeX
@misc{mwsysarc_tariff_welfare_2026,
author = {{MW SysArc}},
title = {Tariff Revenue and Welfare Calculator},
howpublished = {MW SysArc Tools},
year = {2026},
url = {https://economics.mwsysarc.com/micro/tariff-revenue-and-welfare},
note = {Published July 21, 2026; accessed August 31, 2026}
}RIS
TY - ELEC
AU - MW SysArc
TI - Tariff Revenue and Welfare Calculator
T2 - MW SysArc Tools
PY - 2026
DA - 2026-07-21
Y2 - 2026-08-31
UR - https://economics.mwsysarc.com/micro/tariff-revenue-and-welfare
N1 - Published July 21, 2026
ER -Clear answers
Frequently asked questions
What does the Tariff welfare do?
Estimate tariff revenue and simple deadweight loss from reduced imports.
How does the Tariff welfare work?
The calculator applies this formula: Revenue = Tariff × post-tariff imports; DWL ≈ ½ × tariff × import reduction. This partial-equilibrium approximation excludes retaliation, terms-of-trade effects and wider market adjustments.
What can I learn from the Tariff welfare?
It helps you explore the relationship described by this tool: Estimate tariff revenue and simple deadweight loss from reduced imports. Change one input at a time to observe how it affects the result.
Does MW SysArc receive or store what I enter?
No. The calculation runs locally in your browser. MW SysArc does not receive or store your calculation inputs.
How should I use the result?
Use the result as an estimate or educational aid. Check important financial, business or policy decisions with qualified sources and current data.
Last reviewed . Calculations tested .