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TT buying rate, GBP

Exchange rates. Rupees, daily.

Data source: Central Bank of Sri Lanka, CBSL exchange rate lookups

Macro Lab · LK.EXT.FX.GBP.BUY.D · CC BY 4.0

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About this series

  • Source Central Bank of Sri Lanka, compiled by Macro Lab
  • Unit Rupees
  • Date range 3 Jan 2005 – 15 Oct 2026
  • Last checked 15 Oct 2026

Checks: 23 recorded for this series, listed below.

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Details

Name in the warehouse
TT buying rate, GBP
Read from
CBSL exchange rate lookups (Central Bank of Sri Lanka)
Source page
https://www.cbsl.gov.lk/en/rates-and-indicators/exchange-rates/daily-buy-and-sell-exchange-rates
Notes
CBSL Data Library (wizard export) From 2016-10-06, days the Data Library does not have are taken from CBSL's exchange rate lookup pages (159 so far). On the 3197 days both have, 3179 agree.

Source documents

No file is recorded for these values.

Vintages

9 vintages, the latest published 15 Oct 2026.

Related series

Source discrepancies

What the warehouse found when it checked this series: the same figure from two agencies, splice overlaps, published rates against ones recalculated from the index, and outliers.

  • Error in the source6 Oct 2015

    This series reads 209.7; the same figure from the other source reads 183.4. Compared with LK.EXT.FX_DAILY_TT.GBP.BUY.D.

    Two agencies: 183.37 and 209.67, difference −26.3.

    LK.EXT.FX_DAILY_TT.GBP.BUY.D: IF_Buying_Selling file vs the Data Library

    LK.EXT.FX_DAILY_TT.GBP.BUY.D: value 183.3700 vs Data Library 209.6700. Whole-day anomaly in the source file: every daily-TT currency (buy and sell) jumps on this one day while every neighbouring day matches the Data Library exactly (e.g. USD/BUY 144.53 here vs 138.9x the day before and after, in both the file and the Library) - re-verified series by series. A single bad row in IF_Buying_Selling_Exchange_Rates...xlsx, not a parsing issue.

  • Error in the source1 Oct 2018

    This series reads 216.7; the same figure from the other source reads 220.1. Compared with LK.EXT.FX_DAILY_TT.GBP.BUY.D.

    Two agencies: 220.092 and 216.66, difference 3.432.

    LK.EXT.FX_DAILY_TT.GBP.BUY.D: IF_Buying_Selling file vs the Data Library

    LK.EXT.FX_DAILY_TT.GBP.BUY.D: value 220.0924 vs Data Library 216.6600. USD/BUY 180.08 here vs ~167.0 the day before and after). A single bad row in the source file.

  • Rounding26 Apr 2018

    This series reads 215.7; the same figure from the other source reads 215.9. Compared with LK.EXT.FX_DAILY_TT.GBP.BUY.D.

    Two agencies: 215.87 and 215.7, difference 0.171.

    LK.EXT.FX_DAILY_TT.GBP.BUY.D: IF_Buying_Selling file vs the Data Library

    LK.EXT.FX_DAILY_TT.GBP.BUY.D: value 215.8705 vs Data Library 215.7000. Every currency differs from the Data Library by under 0.2 LKR on this date - the file records 4 decimal places (e.g. USD/BUY 155.5247) where the Library's copy has 2 (155.43); a precision/rounding difference between two CBSL publications of the same TT rate, not an error.

  • Disagrees with itself7 May 2010

    Checked against another source.

    Successor diff: 167.1 and 166.97, difference 0.13.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself11 May 2010

    Checked against another source.

    Successor diff: 167.27 and 167.09, difference 0.18.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself15 Jun 2010

    Checked against another source.

    Successor diff: 165.88 and 165.94, difference −0.06.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself19 Jul 2010

    Checked against another source.

    Successor diff: 174.47 and 170.93, difference 3.54.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself16 Nov 2010

    Checked against another source.

    Successor diff: 177.1 and 177.35, difference −0.25.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself22 Nov 2010

    Checked against another source.

    Successor diff: 176.94 and 176.84, difference 0.1.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself1 Nov 2011

    Checked against another source.

    Successor diff: 175.45 and 175.25, difference 0.2.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself23 Nov 2011

    Checked against another source.

    Successor diff: 175.87 and 175.78, difference 0.09.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself25 Jan 2012

    Checked against another source.

    Successor diff: 175.79 and 176.28, difference −0.49.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself9 Feb 2012

    Checked against another source.

    Successor diff: 178.17 and 178.67, difference −0.5.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself23 Dec 2013

    Checked against another source.

    Successor diff: 210.52 and 210.98, difference −0.46.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself3 Oct 2014

    Checked against another source.

    Successor diff: 207.32 and 207.31, difference 0.01.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself10 Mar 2015

    Checked against another source.

    Successor diff: 198.29 and 196.29, difference 2.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself21 Jul 2015

    Checked against another source.

    Successor diff: 204.95 and 205.33, difference −0.38.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself16 Dec 2015

    Checked against another source.

    Successor diff: 212.06 and 213.71, difference −1.65.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself29 Feb 2016

    Checked against another source.

    Successor diff: 196.81 and 198.51, difference −1.7.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself8 Feb 2018

    Checked against another source.

    Successor diff: 211.41 and 211.2, difference 0.21.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • Disagrees with itself26 Apr 2018

    Checked against another source.

    Successor diff: 215.87 and 215.7, difference 0.17.

    CBSL's exchange rate lookup pages against the Data Library

    CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.

  • For information

    This series and the same figure from another source differ over the period they share. Compared with LK.EXT.FX_MONTHLY.GBP.EOM.M.

    Two agencies: , difference −0.7.

    GBP: IF_End_of_the_Month file vs the Data Library's daily TT mid on the last business day on record each month. 64 of 261 months differ by more than 0.5 LKR, mean diff -0.700, worst -16.937 in 2022-04.

    GBP: IF_End_of_the_Month_Exchange_Rates.xlsx (CBSL's IMF/IFS reporting rate) vs the Data Library's daily commercial-bank TT mid on the last business day on record each month.

  • For information

    This series and the same figure from another source differ over the period they share. Compared with LK.EXT.FX_MONTHLY.GBP.AVG.M.

    Two agencies: , difference −1.54.

    GBP: IF_Monthly_Average file vs mean of the Data Library's daily TT mid, by calendar month. 44 of 261 months differ by more than 0.5 LKR, mean diff -1.540, worst -9.462 in 2022-04.

    GBP: IF_Monthly_Average_Exchange_Rates.xlsx (CBSL's IMF/IFS reporting rate) vs the mean of the Data Library's daily commercial-bank TT mid over the same calendar month. Reported, not merged.

Errors and rounding first. 20 more checks.